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snippets/js/s/is-nil.md

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+---
+title: Value is nil
+type: snippet
+language: javascript
+tags: [type]
+cover: river-houses
+dateModified: 2020-10-20T23:02:01+03:00
+---
+
+Checks if the specified value is `null` or `undefined`.
+
+- Use the strict equality operator to check if the value of `val` is equal to `null` or `undefined`.
+
+```js
+const isNil = val => val === undefined || val === null;
+```
+
+```js
+isNil(null); // true
+isNil(undefined); // true
+isNil(''); // false
+```