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