14 lines
419 B
Markdown
14 lines
419 B
Markdown
### differenceWith
|
|
|
|
Filters out all values from an array for which the comparator function does not return `true`.
|
|
|
|
Use `Array.filter()` and `Array.findIndex()` to find the appropriate values.
|
|
|
|
```js
|
|
const differenceWith = (arr, val, comp) => arr.filter(a => val.findIndex(b => comp(a, b)) === -1);
|
|
```
|
|
|
|
```js
|
|
differenceWith([1, 1.2, 1.5, 3, 0], [1.9, 3, 0], (a, b) => Math.round(a) === Math.round(b)); // [1, 1.2]
|
|
```
|