51 lines
1.6 KiB
HTML
51 lines
1.6 KiB
HTML
<!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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<link rel="icon" href="https://fav.farm/🔥" />
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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(person => ((new Date()).getFullYear()) - person.year >= 19);
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// Array.prototype.every() // is everyone 19 or older?
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const allAdults = people.every(person => ((new Date()).getFullYear()) - person.year >= 19);
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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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const comment = comments.find(comment => comment.id === 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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const index = comments.findIndex(comment => comment.id === 823423);
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const newComments = [
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...comments.slice(0, index), ...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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