16 lines
289 B
Markdown
16 lines
289 B
Markdown
### isFunction
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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(null); // false
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isFunction('x'); // false
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isFunction(x => x); // true
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```
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