7d47cf05db
Remove unnecessary multiple array making with `.split()` Reducing lines and making it more terse and readable
14 lines
506 B
Markdown
14 lines
506 B
Markdown
### toDecimalMark
|
|
|
|
Convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form.
|
|
|
|
Use `toString()` to convert the float `num` to a string, then use regex to separate every three characters of the integer part with a comma.
|
|
|
|
```js
|
|
const toDecimalMark = (num) => {
|
|
let numberParts = num.toString().split('.')
|
|
return `${numberParts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',')}.${numberParts[1]}`
|
|
}
|
|
// toDecimalMark(12305030388.9087) //-> '12,305,030,388.9087'
|
|
```
|