CODEWITHSUNDEEP
javascriptregex
Salmon
Salmon

Reputation: 133

Javascript RegExp : split by comma with filtering excess white-space

This is my input string:

var str = 'tags:  JavaScript, Markdown,   Web  , programming   skill  ';

At first I filter the 'tags:' part by

var tags = str.match(/^tags:\s{0,}(.{1,})/);

Then the string is

'JavaScript, Markdown,   Web  , programming   skill  '

How could I get the result by RegExp-match.

['JavaScript', 'Markdown', 'Web', 'programming skill']

Thank everyone.

Upvotes: 0

Views: 83

Answers (2)

Avinash Raj
Avinash Raj

Reputation: 174756

I suggest you to do string.replace and then string.split because your input contains more than one spaces at the middle.

> var str = 'tags:  JavaScript, Markdown,   Web  , programming   skill  ';
> var res = str.replace(/tags:\s*|\s*$|( ) +/g, '$1');
> res.split(/\s*,\s*/)
[ 'JavaScript',
  'Markdown',
  'Web',
  'programming skill' ]

tags:\s*|\s*$|( ) + matches the leading tags string along with the following spaces or the spaces which are at the end of the string or captures the single space at the middle and the spaces following that single space are matched. Replacing all the matched characters with the chars inside group index 1 would be resulted in removing trailing spaces, the string tags spaces and the two or more spaces at the middle would be turned into one.

DEMO for the String.replace Part

Upvotes: 2

vks
vks

Reputation: 67968

tags:\s+|\s*,\s+

Split by this.Remove an empty element later.See demo.

https://regex101.com/r/qB0jV1/4

Upvotes: 0

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