# `filter()`
The filter method filters the collection using the given callback, keeping only those items that pass a given truth test:
```js
const collection = collect([1, 2, 3, 4]);
const filtered = collection.filter((value, key) => value > 2);
filtered.all();
// [3, 4]
```
If no callback is supplied, all entries of the collection that are equivalent to `false` will be removed:
```js
const collection = collect([
0,
1,
2,
null,
3,
4,
undefined,
5,
6,
7,
[],
8,
9,
{},
10,
]);
const filtered = collection.filter();
filtered.all();
// [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
```
> For the inverse of `filter`, see the `reject` method.
[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/filter.js) |