# `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)