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| 1 | +<!DOCTYPE html> |
| 2 | +<html lang="en"> |
| 3 | +<head> |
| 4 | + <meta charset="UTF-8"> |
| 5 | + <title>Array Cardio 💪💪</title> |
| 6 | +</head> |
| 7 | +<body> |
| 8 | + <p><em>Psst: have a look at the JavaScript Console</em> 💁</p> |
| 9 | + <script> |
| 10 | + // ## Array Cardio Day 2 |
| 11 | + |
| 12 | + const people = [ |
| 13 | + { name: 'Wes', year: 1988 }, |
| 14 | + { name: 'Kait', year: 1986 }, |
| 15 | + { name: 'Irv', year: 1970 }, |
| 16 | + { name: 'Lux', year: 2015 } |
| 17 | + ]; |
| 18 | + |
| 19 | + const comments = [ |
| 20 | + { text: 'Love this!', id: 523423 }, |
| 21 | + { text: 'Super good', id: 823423 }, |
| 22 | + { text: 'You are the best', id: 2039842 }, |
| 23 | + { text: 'Ramen is my fav food ever', id: 123523 }, |
| 24 | + { text: 'Nice Nice Nice!', id: 542328 } |
| 25 | + ]; |
| 26 | + |
| 27 | + // Some and Every Checks |
| 28 | + // Array.prototype.some() // is at least one person 19? |
| 29 | + const is19 = (person) => ((new Date()).getFullYear()) - person.year >= 19 |
| 30 | + console.log(people.some(is19)) |
| 31 | + |
| 32 | + // Array.prototype.every() // is everyone 19? |
| 33 | + console.log(people.some(is19)) |
| 34 | + |
| 35 | + // Array.prototype.find() |
| 36 | + // Find is like filter, but instead returns just the one you are looking for |
| 37 | + // find the comment with the ID of 823423 |
| 38 | + const comment = comments.find((comment) => comment.id === 823423 ) |
| 39 | + console.log(comment); |
| 40 | + |
| 41 | + // Array.prototype.findIndex() |
| 42 | + // Find the comment with this ID |
| 43 | + const index = comments.findIndex((comment) => comment.id === 823423 ) |
| 44 | + // delete the comment with the ID of 823423 |
| 45 | + const newComments = [ |
| 46 | + ...comments.slice(0,index), |
| 47 | + ...comments.slice(index + 1), |
| 48 | + ]; |
| 49 | + |
| 50 | + </script> |
| 51 | +</body> |
| 52 | +</html> |
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