Split string in JavaScript when there is not a clear separator

Question

I'm trying to split a String in JavaScript that is separated by commas but, I have extra commas within the portions of the string I want to keep together. Here's an example:

var str = 'A. This is one part, B. This is the, tricky part., C. Final portion';

My desired result is an array like this one:

var arrayAfterSplit = [
    'A. This is one part',
    'B. This is the, tricky part',
    'C. Final portion'
];

I'm trying with Regex but, no success until now, I'd appreciate any help guys. Thanks.

HBP · Accepted Answer · 2018-04-06 18:29:45Z

4

How about :

 str.split (/, (?=[A-Z]\. )/)

Explanation :

the , find those characters in source string, the (?=[A-Z]\. ) then test if the following characters a capital letter followed by a full-stop and a single space. This is a "look ahead" test and the characters there are just checked not matched by the regular expression.

So the string is split by the occurrence of , but only if the following characters are a capital letter etc.

edited Apr 6, 2018 at 18:29

answered Apr 6, 2018 at 5:23

HBP

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1 Comment

andresscode Over a year ago

You're my hero dude, thanks. Could you explain me a little bit what's happening there?

AssenKhan · Accepted Answer · 2018-04-06 05:45:23Z

0

try the Below one

(?:,\s+(?=[A-Z]\.))

,\s+ - Comma (,) should be followed by one or more white space 


 (?=[A-Z]\.) positive Look ahead to check the above condition follows by the Capital Letter and (.)

edited Apr 6, 2018 at 5:45

answered Apr 6, 2018 at 5:38

AssenKhan

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