Update array-pull-(mutates-array).md

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Angelos Chalaris
2017-12-17 11:47:17 +02:00
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### Array pull (mutates array)
Use `Array.filter()` to pull out the values that are not needed.
Use `Array.length = 0` to mutate the passed in array by resetting it's length to zero.
Use `Array.push()` to re-populate the original array to equal the pulled values
Use `Array.filter()` and `Array.includes()` to pull out the values that are not needed.
Use `Array.length = 0` to mutate the passed in array by resetting it's length to zero and `Array.push()` to re-populate it with only the pulled values.
```js
const pull = (arr, ...args) => {