Spliting array with complex regex including empty string

Question

I have a string like '123,45,6,7' and want to split it on separate digit: [1, 2, 3, 4, 5, 6, 7]

I know there is a way to split string by complex regex like this:

'1 2 3,4a5,6,7'.split(/[^\d]/) -> [1,2,3,4,5,6,7].

Is there way to split this string by regex, something like:

'123,45,6,7'.split(/[^\d]|empty string/)?

you only need to use [`String.prototype.match`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/match) — KarelG, Jul 12 '19 at 07:43

score 1 · Accepted Answer · answered Jul 12 '19 at 07:43

1

You could split by positive lookahead with a digit.

console.log('123,45,6,7'.split(/\D|(?=\d)/));

answered Jul 12 '19 at 07:43

Nina Scholz

1

thanks, i found one more way, use global math: '123,45,6,7'.match(/[\d]/g) – Max Jul 12 '19 at 07:45
3

using `'123,45,6,7'.match(/\d/g)` is much less resource intensive than what you are proposing ... – KarelG Jul 12 '19 at 07:46
1

i know, but the question was about splitting. – Nina Scholz Jul 12 '19 at 07:47

1 Answers1