Nest all content into snippets

snippets/js/s/reject.md

@@ -0,0 +1,22 @@
+---
+title: Reject non-matching values
+type: snippet
+language: javascript
+tags: [array]
+cover: interior-7
+dateModified: 2020-10-22T20:24:04+03:00
+---
+
+Filters an array's values based on a predicate function, returning only values for which the predicate function returns `false`.
+
+- Use `Array.prototype.filter()` in combination with the predicate function, `pred`, to return only the values for which it returns `false`.
+
+```js
+const reject = (pred, array) => array.filter((...args) => !pred(...args));
+```
+
+```js
+reject(x => x % 2 === 0, [1, 2, 3, 4, 5]); // [1, 3, 5]
+reject(word => word.length > 4, ['Apple', 'Pear', 'Kiwi', 'Banana']);
+// ['Pear', 'Kiwi']
+```