18 lines
394 B
Markdown
18 lines
394 B
Markdown
---
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title: formatNumber
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tags: string,math,beginner
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---
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Formats a number using the local number format order.
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- Use `Number.prototype.toLocaleString()` to convert a number to using the local number format separators.
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```js
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const formatNumber = num => num.toLocaleString();
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```
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```js
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formatNumber(123456); // '123,456' in `en-US`
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formatNumber(15675436903); // '15.675.436.903' in `de-DE`
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```
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