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</ul>\n")]),a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")])]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n")])])]),a("h2",{attrs:{id:"introduction"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#introduction"}},[t._v("#")]),t._v(" Introduction")]),t._v(" "),a("p",[t._v("Template Literals act like strings with special features. They are enclosed by by the back-tick ```js` and can be spanned across multiple lines.")]),t._v(" "),a("p",[t._v("Template Literals can contain embedded expressions too. These expressions are indicated by a "),a("code",[t._v("$")]),t._v(" sign and curly braces "),a("code",[t._v("{}")])]),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("//A single line Template Literal  ")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" aLiteral "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token template-string"}},[a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")]),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("single line string data")]),a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")])]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("\n\n\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Template Literal that spans across lines       ")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" anotherLiteral "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token template-string"}},[a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")]),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("string data that spans\n         across multiple lines of code")]),a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[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("//Template Literal with an embedded expression")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" x "),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("var")]),t._v(" y "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token number"}},[t._v("3")]),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(" theTotal "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token template-string"}},[a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")]),a("span",{pre:!0,attrs:{class:"token string"}},[t._v("The total is ")]),a("span",{pre:!0,attrs:{class:"token interpolation"}},[a("span",{pre:!0,attrs:{class:"token interpolation-punctuation punctuation"}},[t._v("${")]),t._v("x "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("+")]),t._v(" y"),a("span",{pre:!0,attrs:{class:"token interpolation-punctuation punctuation"}},[t._v("}")])]),a("span",{pre:!0,attrs:{class:"token template-punctuation string"}},[t._v("`")])]),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(";")]),t._v("     "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v('// Contains "The total is 5" ')]),t._v("\n\n\n\n"),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Comarison of a string and a template literal")]),t._v("\n"),a("span",{pre:!0,attrs:{class:"token keyword"}},[t._v("var")]),t._v(" aString "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("=")]),t._v(" "),a("span",{pre:!0,attrs:{class:"token string"}},[t._v('"single line string data"')]),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("aString "),a("span",{pre:!0,attrs:{class:"token operator"}},[t._v("===")]),t._v(" aLiteral"),a("span",{pre:!0,attrs:{class:"token punctuation"}},[t._v(")")]),t._v("                         "),a("span",{pre:!0,attrs:{class:"token comment"}},[t._v("//Returns true")]),t._v("\n\n")])])]),a("p",[t._v("There are many other features of String Literals such as Tagged Template Literals and Raw property. These are demonstrated in other examples.")]),t._v(" "),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("message = "),a("code",[t._v("Welcome, ${user.name}!")])]),t._v(" "),a("li",[t._v("pattern = new RegExp(String.raw"),a("code",[t._v("Welcome, (\\w+)!")]),t._v(");")]),t._v(" "),a("li",[t._v("query = SQL"),a("code",[t._v("INSERT INTO User (name) VALUES (${name})")])])]),t._v(" "),a("h4",{attrs:{id:"remarks"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#remarks"}},[t._v("#")]),t._v(" Remarks")]),t._v(" "),a("p",[t._v("Template Literals were first specified by "),a("a",{attrs:{href:"http://www.ecma-international.org/ecma-262/6.0/#sec-template-literals",target:"_blank",rel:"noopener noreferrer"}},[t._v("ECMAScript 6 §12.2.9"),a("OutboundLink")],1),t._v(".")])])}),[],!1,null,null,null);s.default=e.exports}}]);