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javascript/snippets/is-function.md

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+---
+title: Value is function
+type: snippet
+tags: [type,function]
+cover: boulder-beach
+dateModified: 2020-09-15T16:28:04+03:00
+---
+
+Checks if the given argument is a function.
+
+- Use `typeof` to check if a value is classified as a function primitive.
+
+```js
+const isFunction = val => typeof val === 'function';
+```
+
+```js
+isFunction('x'); // false
+isFunction(x => x); // true
+```