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30-seconds-of-code/snippets/toDecimalMark.md
2017-12-28 08:30:19 +00:00

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### toDecimalMark
Use `toLocaleString()` to convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form. It makes a comma separated string from a number.
```js
const toDecimalMark = num => num.toLocaleString('en-US');
```
```js
toDecimalMark(12305030388.9087); // "12,305,030,388.9087"
```