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Angelos Chalaris
2020-09-15 16:28:04 +03:00
parent 040efd4380
commit 53c16dbf65
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snippets/intersectionWith.md
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@ -5,7 +5,7 @@ tags: array,function,intermediate
Returns a list of elements that exist in both arrays, using a provided comparator function.
Use `Array.prototype.filter()` and `Array.prototype.findIndex()` in combination with the provided comparator to determine intersecting values.
- Use `Array.prototype.filter()` and `Array.prototype.findIndex()` in combination with the provided comparator to determine intersecting values.
```js
const intersectionWith = (a, b, comp) => a.filter(x => b.findIndex(y => comp(x, y)) !== -1);
@ -13,4 +13,4 @@ const intersectionWith = (a, b, comp) => a.filter(x => b.findIndex(y => comp(x,
```js
intersectionWith([1, 1.2, 1.5, 3, 0], [1.9, 3, 0, 3.9], (a, b) => Math.round(a) === Math.round(b)); // [1.5, 3, 0]
```
```