Add any, anyBy, all, allBy, none, noneBy

This commit is contained in:
Angelos Chalaris
2018-02-14 11:46:15 +02:00
parent 096fa381f0
commit dd9bbaac65
20 changed files with 1185 additions and 953 deletions

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snippets/allBy.md Normal file
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### allBy
Returns `true` if the provided predicate function returns `true` for all elements in a collection, `false` otherwise.
Use `Array.every()` to test if all elements in the collection return `true` based on `fn`.
```js
const allBy = (arr, fn) => arr.every(fn);
```
```js
allBy([4,2,3], x => x > 1); // true
```