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Optimized longestItem

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Bruce Feldman
2018-08-12 20:56:24 -04:00
parent 025f4f5534
commit 95e5603702
2 changed files with 3 additions and 3 deletions
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4
snippets/longestItem.md
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Takes any number of iterable objects or objects with a `length` property and returns the longest one. Takes any number of iterable objects or objects with a `length` property and returns the longest one.
Use `Array.sort()` to sort all arguments by `length`, return the first (longest) one. Use `Array.reduce()` to collect the longest element. Returns [] for empty array.
```js ```js
const longestItem = (...vals) => [...vals].sort((a, b) => b.length - a.length)[0]; const longestItem = (...vals) => [...vals].reduce((a, x) => (a.length > x.length ? a : x), []);
``` ```
```js ```js

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test/longestItem/longestItem.js
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const longestItem = (...vals) => [...vals].sort((a, b) => b.length - a.length)[0]; const longestItem = (...vals) => [...vals].reduce((a, x) => (a.length > x.length ? a : x), []);
module.exports = longestItem; module.exports = longestItem;