14 lines
242 B
Markdown
14 lines
242 B
Markdown
### isNumber
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Checks if the given argument is a number.
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Use `typeof` to check if a value is classified as a number primitive.
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```js
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const isNumber = val => typeof val === 'number';
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```
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```js
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isNumber('1'); // false
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isNumber(1); // true
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``` |