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script.js
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executable file
·37 lines (32 loc) · 1.36 KB
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const people = [
{ name: 'Wes', year: 1988 },
{ name: 'Kait', year: 1986 },
{ name: 'Irv', year: 1970 },
{ name: 'Lux', year: 2015 }
];
const comments = [
{ text: 'Love this!', id: 523423 },
{ text: 'Super good', id: 823423 },
{ text: 'You are the best', id: 2039842 },
{ text: 'Ramen is my fav food ever', id: 123523 },
{ text: 'Nice Nice Nice!', id: 542328 }
];
// Some and Every Checks
// Array.prototype.some() // is at least one person 19?
const isSome19 = people.some(person => new Date().getFullYear() - person.year >= 19);
console.log('Is at least one person 19?', isSome19);
// Array.prototype.every() // is everyone 19?
const isEvery19 = people.every(person => new Date().getFullYear() - person.year >= 19);
console.log('Is everyone 19?', isEvery19);
// Array.prototype.find()
// Find is like filter, but instead returns just the one you are looking for
// find the comment with the ID of 823423
const comment823423 = comments.find(comment => comment.id === 823423);
console.log('Find the comment with the ID of 823423', comment823423);
// Array.prototype.findIndex()
// Find the comment with this ID
// delete the comment with the ID of 823423
const commentIndex = comments.findIndex(comment => comment.id === 823423);
comments.splice(commentIndex, 1);
console.log('Find the index of comment with the ID of 823423 and delete it');
console.table(comments);