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Lines changed: 75 additions & 38 deletions
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Array Cardio 💪💪</title>
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</head>
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<body>
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<p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
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<script>
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// ## Array Cardio Day 2
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const people = [
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{ name: 'Wes', year: 1988 },
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{ name: 'Kait', year: 1986 },
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{ name: 'Irv', year: 1970 },
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{ name: 'Lux', year: 2015 }
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];
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const comments = [
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{ text: 'Love this!', id: 523423 },
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{ text: 'Super good', id: 823423 },
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{ text: 'You are the best', id: 2039842 },
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{ text: 'Ramen is my fav food ever', id: 123523 },
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{ text: 'Nice Nice Nice!', id: 542328 }
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];
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// Some and Every Checks
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// Array.prototype.some() // is at least one person 19 or older?
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// Array.prototype.every() // is everyone 19 or older?
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// Array.prototype.find()
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// Find is like filter, but instead returns just the one you are looking for
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// find the comment with the ID of 823423
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// Array.prototype.findIndex()
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// Find the comment with this ID
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// delete the comment with the ID of 823423
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</script>
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</body>
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<head>
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<meta charset="UTF-8" />
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<title>Array Cardio 💪💪</title>
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</head>
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<body>
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<p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
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<script>
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// ## Array Cardio Day 2
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const people = [
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{ name: "Wes", year: 1988 },
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{ name: "Kait", year: 1986 },
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{ name: "Irv", year: 1970 },
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{ name: "Lux", year: 2015 },
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];
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const comments = [
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{ text: "Love this!", id: 523423 },
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{ text: "Super good", id: 823423 },
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{ text: "You are the best", id: 2039842 },
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{ text: "Ramen is my fav food ever", id: 123523 },
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{ text: "Nice Nice Nice!", id: 542328 },
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];
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// Some and Every Checks
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// Array.prototype.some() // is at least one person 19 or older?
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/* const isAdult = people.some(function() {
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const currentYear= (new Date()).getFullYear()
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if(person.year - person.year >= 19) {
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return true;
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}
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}) */
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const isAdult = people.some((person) => {
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const currentYear = new Date().getFullYear();
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return currentYear - person.year >= 19;
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});
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console.log({ isAdult });
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// Array.prototype.every() // is everyone 19 or older?
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const allAdults = people.every((person) => {
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const currentYear = new Date().getFullYear();
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return currentYear - person.year >= 19;
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});
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console.log(allAdults);
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// Array.prototype.find()
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// Find is like filter, but instead returns just the one you are looking for
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// find the comment with the ID of 823423
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/*
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const comment = comments.find(function (comment) {
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if (comment.id === 823423) {
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return true;
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}
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});
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console.log(comment);
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*/
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const comment = comments.find((comment) => comment.id === 823423);
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console.log(comment);
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// Array.prototype.findIndex()
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// Find the comment with this ID
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// delete the comment with the ID of 823423
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const index = comments.findIndex((comment) => comment.id === 823423);
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console.log(index);
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//comments.splice(index, 1);
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const newComments = [
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...comments.slice(0, index),
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...comments.slice(index + 1),
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];
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</script>
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</body>
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</html>

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