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"),a("code",[t._v("Foo was born on: Sat Jan 1 2000")])]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Meanwhile somewhere else...")]),t._v("\n\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Bar lives in a country with timezone GMT - 1")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" birthday "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("receiveFromFoo")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token 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birthday"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getUTCDate")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" \n      birthday"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getUTCMonth")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" birthday"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getUTCFullYear")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token 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It uses the same arguments as the longest "),a("code",[t._v("Date")]),t._v(" constructor. This method will return a number representing the time that has passed since January 1, 1970, 00:00:00 UTC.")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[t._v("console"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("Date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token constant"}},[t._v("UTC")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2000")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("0")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("31")]),a("span",{pre:!0,attrs:{class:"token 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"),a("h3",{attrs:{id:"changing-a-date-object"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#changing-a-date-object"}},[t._v("#")]),t._v(" Changing a Date object")]),t._v(" "),a("p",[t._v("All "),a("code",[t._v("Date")]),t._v(" object modifiers, such as "),a("code",[t._v("setDate(...)")]),t._v(" and "),a("code",[t._v("setFullYear(...)")]),t._v(" have an equivalent takes an argument in UTC time rather than in local time.")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" date "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token 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"),a("p",[t._v("Sample output: "),a("code",[t._v("Mon Jan 31 2000 13:00:00 GMT+0100 (West-Europa (standaardtijd))")])]),t._v(" "),a("p",[t._v("The other UTC-specific modifiers are "),a("code",[t._v(".setUTCMonth()")]),t._v(", "),a("code",[t._v(".setUTCDate()")]),t._v(" (for the day of the month), "),a("code",[t._v(".setUTCMinutes()")]),t._v(", "),a("code",[t._v(".setUTCSeconds()")]),t._v(" and "),a("code",[t._v(".setUTCMilliseconds()")]),t._v(".")]),t._v(" "),a("h3",{attrs:{id:"avoiding-ambiguity-with-gettime-and-settime"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#avoiding-ambiguity-with-gettime-and-settime"}},[t._v("#")]),t._v(" Avoiding ambiguity with getTime() and setTime()")]),t._v(" "),a("p",[t._v("Where the methods above are required to differentiate between ambiguity in dates, it is usually easier to communicate a date as the amount of time that has passed since January 1, 1970, 00:00:00 UTC. This single number represents a single point in time, and can be converted to local time whenever necessary.")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" date "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("Date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token constant"}},[t._v("UTC")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2000")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("0")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("31")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("12")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" timestamp "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getTime")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Alternatively")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" timestamp2 "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" Date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token constant"}},[t._v("UTC")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2000")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("0")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("31")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("12")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("timestamp "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("===")]),t._v(" timestamp2"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("blockquote"),t._v(" "),a("p",[t._v("Sample output: "),a("code",[t._v("true")])]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//And when constructing a date from it elsewhere...")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" otherDate "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("timestamp"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Represented as an universal date")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("otherDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("toUTCString")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Represented as a local date")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("otherDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("blockquote"),t._v(" "),a("p",[t._v("Sample output: "),a("pre",[t._v("Mon, 31 Jan 2000 12:00:00 GMT\nMon Jan 31 2000 13:00:00 GMT+0100 (West-Europa (standaardtijd))")])]),t._v(" "),a("h2",{attrs:{id:"formatting-a-javascript-date"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#formatting-a-javascript-date"}},[t._v("#")]),t._v(" Formatting a JavaScript date")]),t._v(" "),a("h3",{attrs:{id:"formatting-a-javascript-date-in-modern-browsers"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#formatting-a-javascript-date-in-modern-browsers"}},[t._v("#")]),t._v(" Formatting a JavaScript date in modern browsers")]),t._v(" "),a("p",[t._v("In modern browsers (*), "),a("a",{attrs:{href:"https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString",target:"_blank",rel:"noopener noreferrer"}},[a("code",[t._v("Date.prototype.toLocaleDateString()")]),a("OutboundLink")],1),t._v(" allows you to define the formatting of a "),a("code",[t._v("Date")]),t._v(" in a convenient manner.")]),t._v(" "),a("p",[t._v("It requires the following format :")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[t._v("dateObj"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("toLocaleDateString")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("[")]),t._v("locales "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("[")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" options"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("]")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("]")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v("\n\n")])])]),a("p",[t._v("The "),a("code",[t._v("locales")]),t._v(" parameter should be a string with a BCP 47 language tag, or an array of such strings.")]),t._v(" "),a("p",[t._v("The "),a("code",[t._v("options")]),t._v(" parameter should be an object with some or all of the following properties:")]),t._v(" "),a("ul",[a("li",[a("strong",[t._v("localeMatcher")]),t._v(" : possible values are "),a("code",[t._v('"lookup"')]),t._v(" and "),a("code",[t._v('"best fit"')]),t._v("; the default is "),a("code",[t._v('"best fit"')])]),t._v(" "),a("li",[a("strong",[t._v("timeZone")]),t._v(" : the only value implementations must recognize is "),a("code",[t._v('"UTC"')]),t._v("; the default is the runtime's default time zone")]),t._v(" "),a("li",[a("strong",[t._v("hour12")]),t._v(" :possible values are "),a("code",[t._v("true")]),t._v(" and "),a("code",[t._v("false")]),t._v("; the default is locale dependent")]),t._v(" "),a("li",[a("strong",[t._v("formatMatcher")]),t._v(" : possible values are "),a("code",[t._v('"basic"')]),t._v(" and "),a("code",[t._v('"best fit"')]),t._v("; the default is "),a("code",[t._v('"best fit"')])]),t._v(" "),a("li",[a("strong",[t._v("weekday")]),t._v(" : possible values are "),a("code",[t._v('"narrow"')]),t._v(", "),a("code",[t._v('"short"')]),t._v(" & "),a("code",[t._v('"long"')])]),t._v(" "),a("li",[a("strong",[t._v("era")]),t._v(" : possible values are "),a("code",[t._v('"narrow"')]),t._v(", "),a("code",[t._v('"short"')]),t._v(" & "),a("code",[t._v('"long"')])]),t._v(" "),a("li",[a("strong",[t._v("year")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(" & "),a("code",[t._v('"2-digit"')])]),t._v(" "),a("li",[a("strong",[t._v("month")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(", "),a("code",[t._v('"2-digit"')]),t._v(", "),a("code",[t._v('"narrow"')]),t._v(", "),a("code",[t._v('"short"')]),t._v(" & "),a("code",[t._v('"long"')])]),t._v(" "),a("li",[a("strong",[t._v("day")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(" & "),a("code",[t._v('"2-digit"')])]),t._v(" "),a("li",[a("strong",[t._v("hour")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(" & "),a("code",[t._v('"2-digit"')])]),t._v(" "),a("li",[a("strong",[t._v("minute")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(" & "),a("code",[t._v('"2-digit"')])]),t._v(" "),a("li",[a("strong",[t._v("second")]),t._v(" : possible values are "),a("code",[t._v('"numeric"')]),t._v(" & "),a("code",[t._v('"2-digit"')])]),t._v(" "),a("li",[a("strong",[t._v("timeZoneName")]),t._v(" : possible values are "),a("code",[t._v('"short"')]),t._v(" & "),a("code",[t._v('"long"')])])]),t._v(" "),a("h3",{attrs:{id:"how-to-use"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#how-to-use"}},[t._v("#")]),t._v(" How to use")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" today "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("toLocaleDateString")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'en-GB'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("  \n    day "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'numeric'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v("\n    month "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'short'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v("\n    year "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'numeric'")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("p",[t._v("Output if executed on January 24ᵗʰ, 2036 :")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'24 Jan 2036'")]),t._v("\n\n")])])]),a("h3",{attrs:{id:"going-custom"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#going-custom"}},[t._v("#")]),t._v(" Going custom")]),t._v(" "),a("p",[t._v("If "),a("code",[t._v("Date.prototype.toLocaleDateString()")]),t._v(" isn't flexible enough to fulfill whatever need you may have, you might want to consider creating a custom Date object that looks like this:")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" DateObject "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("function")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" monthNames "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("[")]),t._v("\n      "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"January"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"February"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"March"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v("\n      "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"April"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"May"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"June"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"July"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v("\n      "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"August"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"September"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"October"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v("\n      "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"November"')]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"December"')]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("]")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token function-variable function"}},[t._v("date")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("function")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token parameter"}},[t._v("str")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("this")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("set")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("str"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("prototype "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token function-variable function"}},[t._v("set")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("function")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token parameter"}},[t._v("str")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" dateDef "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" str "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("?")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token 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"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("this")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("month"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("this")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("monthName "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" monthNames"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("[")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("this")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),t._v("month "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("1")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("]")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token 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"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("return")]),t._v(" date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("p",[t._v("If you included that code and executed "),a("code",[t._v("new DateObject()")]),t._v(" on January 20ᵗʰ, 2019, it would produce an object with the following properties:")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[t._v("day"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("20")]),t._v("\ndayPadded"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"20"')]),t._v("\nmonth"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("1")]),t._v("\nmonthPadded"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"01"')]),t._v("\nmonthName"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"January"')]),t._v("\nyear"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(":")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2019")]),t._v("\n\n")])])]),a("p",[t._v("To get a formatted string, you could do something like this:")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("DateObject")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("get")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("[")]),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'dayPadded'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'monthPadded'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("'year'")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("]")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("p",[t._v("That would produce the following output:")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token number"}},[t._v("20")]),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("01")]),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2016")]),t._v("\n\n")])])]),a("p",[t._v("(*) "),a("a",{attrs:{href:"http://programmers.stackexchange.com/questions/56490/what-does-nightly-builds-mean",target:"_blank",rel:"noopener noreferrer"}},[a("strong",[t._v("According to the MDN")]),a("OutboundLink")],1),t._v(', "modern browsers" means Chrome 24+, Firefox 29+, IE11, Edge12+, Opera 15+ & Safari '),a("a",{attrs:{href:"http://programmers.stackexchange.com/questions/56490/what-does-nightly-builds-mean",target:"_blank",rel:"noopener noreferrer"}},[a("strong",[t._v("nightly build")]),a("OutboundLink")],1)]),t._v(" "),a("h2",{attrs:{id:"get-the-current-time-and-date"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-current-time-and-date"}},[t._v("#")]),t._v(" Get the current time and date")]),t._v(" "),a("p",[t._v("Use "),a("code",[t._v("new Date()")]),t._v(" to generate a new "),a("code",[t._v("Date")]),t._v(" object containing the current date and time.")]),t._v(" "),a("p",[a("strong",[t._v("Note that")]),t._v(" "),a("code",[t._v("Date()")]),t._v(" "),a("strong",[t._v("called without arguments is equivalent to")]),t._v(" "),a("code",[t._v("new Date(Date.now())")]),a("strong",[t._v(".")])]),t._v(" "),a("p",[t._v("Once you have a date object, you can apply any of the several available methods to extract its properties (e.g. "),a("code",[t._v("getFullYear()")]),t._v(" to get the 4-digits year).")]),t._v(" "),a("p",[t._v("Below are some common date methods.")]),t._v(" "),a("h3",{attrs:{id:"get-the-current-year"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-current-year"}},[t._v("#")]),t._v(" Get the current year")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" year "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getFullYear")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("year"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Sample output: 2016 ")]),t._v("\n\n")])])]),a("h3",{attrs:{id:"get-the-current-month"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-current-month"}},[t._v("#")]),t._v(" Get the current month")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" month "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getMonth")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("month"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Sample output: 0 ")]),t._v("\n\n")])])]),a("p",[t._v("Please note that 0 = January. This is because months range from "),a("strong",[t._v("0")]),t._v(" to "),a("strong",[t._v("11")]),t._v(", so it is often desirable to add "),a("code",[t._v("+1")]),t._v(" to the index.")]),t._v(" "),a("h3",{attrs:{id:"get-the-current-day"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-current-day"}},[t._v("#")]),t._v(" Get the current day")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" day "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token 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"),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" hours "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getHours")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token 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48")]),t._v("\n\n")])])]),a("h3",{attrs:{id:"get-the-current-milliseconds"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-current-milliseconds"}},[t._v("#")]),t._v(" Get the current milliseconds")]),t._v(" "),a("p",[t._v("To get the milliseconds (ranging from 0 to 999) of an instance of a "),a("code",[t._v("Date")]),t._v(" object, use its "),a("code",[t._v("getMilliseconds")]),t._v(" method.")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" milliseconds "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token 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now")]),t._v("\n\n")])])]),a("h3",{attrs:{id:"convert-the-current-time-and-date-to-a-human-readable-string"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#convert-the-current-time-and-date-to-a-human-readable-string"}},[t._v("#")]),t._v(" Convert the current time and date to a human-readable string")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" now "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// convert date to a 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using a value larger than the number of days in the current month -")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" checkoutDate "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("    "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Thu Jul 21 2016 10:05:13 GMT-0400 (EDT)")]),t._v("\ncheckoutDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("setDate")]),a("span",{pre:!0,attrs:{class:"token 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"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Tue Aug 02 2016 10:05:13 GMT-0400 (EDT)")]),t._v("\n\n")])])]),a("p",[t._v("The same applies to other methods such as getHours(), getMonth(),etc.")]),t._v(" "),a("p",[a("strong",[t._v("Adding Work Days")])]),t._v(" "),a("p",[t._v("If you wish to add work days (in this case I am assuming Monday - Friday) you can use the "),a("code",[t._v("setDate")]),t._v(" function although you need a little extra logic to account for the weekends (obviously this will not take account of national holidays) -")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("function")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("addWorkDays")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token parameter"}},[t._v("startDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(",")]),t._v(" days")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// Get the day of the week as a number (0 = Sunday, 1 = Monday, .... 6 = Saturday)")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" dow "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" startDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getDay")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" days"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// If the current day is Sunday add one day")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("if")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("dow "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("==")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("0")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v("\n        daysToAdd"),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("++")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// If the start date plus the additional days falls on or after the closest Saturday calculate weekends")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("if")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("dow "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(">=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("6")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Subtract days in current working week from work days")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" remainingWorkDays "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("5")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-")]),t._v(" dow"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Add current working week's weekend")]),t._v("\n        daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("if")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("remainingWorkDays "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v(">")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("5")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("{")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Add two days for each working week by calculating how many weeks are included")]),t._v("\n            daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("*")]),t._v(" Math"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("floor")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("remainingWorkDays "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("/")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("5")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Exclude final weekend if remainingWorkDays resolves to an exact number of weeks")]),t._v("\n            "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("if")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("remainingWorkDays "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("%")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("5")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("==")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("0")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v("\n                daysToAdd "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("-=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("2")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n        "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),t._v("\n    startDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("setDate")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("startDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getDate")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" daysToAdd"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n    "),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("return")]),t._v(" startDate"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("}")]),t._v("\n\n")])])]),a("h2",{attrs:{id:"get-the-number-of-milliseconds-elapsed-since-1-january-1970-00-00-00-utc"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#get-the-number-of-milliseconds-elapsed-since-1-january-1970-00-00-00-utc"}},[t._v("#")]),t._v(" Get the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC")]),t._v(" "),a("p",[t._v("The static method "),a("code",[t._v("Date.now")]),t._v(" returns the number of milliseconds that have elapsed since 1 January 1970 00:00:00 UTC.  To get the number of milliseconds that have elapsed since that time using an instance of a "),a("code",[t._v("Date")]),t._v(" object, use its "),a("code",[t._v("getTime")]),t._v(" method.")]),t._v(" "),a("div",{staticClass:"language-js extra-class"},[a("pre",{pre:!0,attrs:{class:"language-js"}},[a("code",[a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// get milliseconds using static method now of Date")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),t._v("Date"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("now")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("// get milliseconds using method getTime of Date instance")]),t._v("\nconsole"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("log")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("new")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token class-name"}},[t._v("Date")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(".")]),a("span",{pre:!0,attrs:{class:"token function"}},[t._v("getTime")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v("(")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("h4",{attrs:{id:"syntax"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#syntax"}},[t._v("#")]),t._v(" Syntax")]),t._v(" "),a("ul",[a("li",[t._v("new Date();")]),t._v(" "),a("li",[t._v("new Date(value);")]),t._v(" "),a("li",[t._v("new Date(dateAsString);")]),t._v(" "),a("li",[t._v("new Date(year, month[, day[, hour[, minute[, second[, millisecond]]]]]);")])]),t._v(" "),a("h4",{attrs:{id:"parameters"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#parameters"}},[t._v("#")]),t._v(" Parameters")]),t._v(" "),a("table",[a("thead",[a("tr",[a("th",[t._v("Parameter")]),t._v(" "),a("th",[t._v("Details")])])]),t._v(" "),a("tbody",[a("tr",[a("td",[a("code",[t._v("value")])]),t._v(" "),a("td",[t._v("The number of milliseconds since 1 January 1970 00:00:00.000 UTC (Unix epoch)")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("dateAsString")])]),t._v(" "),a("td",[t._v("A date formatted as a string (see examples for more information)")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("year")])]),t._v(" "),a("td",[t._v("The year value of the date. Note that "),a("code",[t._v("month")]),t._v(" must also be provided, or the value will be interpreted as a number of milliseconds. Also note that values between "),a("code",[t._v("0")]),t._v(" and "),a("code",[t._v("99")]),t._v(" have special meaning. See the examples.")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("month")])]),t._v(" "),a("td",[t._v("The month, in the range "),a("code",[t._v("0-11")]),t._v('. Note that using values outside the specified range for this and the following parameters will not result in an error, but rather cause the resulting date to "roll over" to the next value. See the examples.')])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("day")])]),t._v(" "),a("td",[t._v("Optional: The date, in the range "),a("code",[t._v("1-31")]),t._v(".")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("hour")])]),t._v(" "),a("td",[t._v("Optional: The hour, in the range "),a("code",[t._v("0-23")]),t._v(".")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("minute")])]),t._v(" "),a("td",[t._v("Optional: The minute, in the range "),a("code",[t._v("0-59")]),t._v(".")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("second")])]),t._v(" "),a("td",[t._v("Optional: The second, in the range "),a("code",[t._v("0-59")]),t._v(".")])]),t._v(" "),a("tr",[a("td",[a("code",[t._v("millisecond")])]),t._v(" "),a("td",[t._v("Optional: The millisecond, in the range "),a("code",[t._v("0-999")]),t._v(".")])])])])])}),[],!1,null,null,null);s.default=e.exports}}]);