Kebab file names

snippets/is-array-like.md

@@ -0,0 +1,23 @@
+---
+title: Value is array-like
+tags: type,array
+cover: colorful-plastic
+firstSeen: 2017-12-31T14:53:01+02:00
+lastUpdated: 2020-10-20T23:02:01+03:00
+---
+
+Checks if the provided argument is array-like (i.e. is iterable).
+
+- Check if the provided argument is not `null` and that its `Symbol.iterator` property is a function.
+
+```js
+const isArrayLike = obj =>
+  obj != null && typeof obj[Symbol.iterator] === 'function';
+```
+
+```js
+isArrayLike([1, 2, 3]); // true
+isArrayLike(document.querySelectorAll('.className')); // true
+isArrayLike('abc'); // true
+isArrayLike(null); // false
+```