15 lines
545 B
Markdown
15 lines
545 B
Markdown
### Array pull (mutates array)
|
|
|
|
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) => {
|
|
let pulled = arr.filter((v, i) => !args.includes(v));
|
|
arr.length = 0; pulled.forEach(v => arr.push(v));
|
|
};
|
|
// let myArray = ['a', 'b', 'c', 'a', 'b', 'c'];
|
|
// pull(myArray, 'a', 'c');
|
|
// console.log(myArray) -> [ 'b', 'b' ]
|
|
```
|