Javascript String Split

Question

I've a String like following:

var str = '35,35,105,105,130,208,50,250';

I would like to split this string and get like this:

var arr = [[35,35],[105,105],[130,208],[50,250]];

I tried some ways, but none of them give me anything. I tried with looping to find the even comma position and split, but that doesn't seem good to me. Please give me some suggestion on this. I'm looking for RegEx Solution.

Does it have to be RegEx?

rid
– rid

2013-11-15 17:33:52 +00:00
Commented Nov 15, 2013 at 17:33 — rid
– rid, Commented Nov 15, 2013 at 17:33

VisioN · Accepted Answer · 2013-11-15 17:53:53Z

5

One possible approach:

'35,35,105,105,130,208,50,250'.match(/\d+,\d+/g).map(function(s) {
    return s.split(',');
});

Another crazy idea in one line:

JSON.parse('['+ '35,35,105,105,130,208,50,250'.replace(/\d+,\d+/g, '[$&]') +']');

edited Nov 15, 2013 at 17:53

answered Nov 15, 2013 at 17:35

VisioN

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3 Comments

Arun P Johny Over a year ago

a 2 dimensional array is needed

VisioN Over a year ago

@ArunPJohny Yeah, I accidentally used filter instead of map.

nderscore Over a year ago

This method will truncate the last value if the string contains an odd number of comma-separated values.

nderscore · Accepted Answer · 2013-11-15 17:39:06Z

1

Here's one way to do it.

var values = str.split(','),
    output = [];
while(values.length)
    output.push(values.splice(0,2));

If str contains an odd number of values, the last array in output will contain only one value using this method.

answered Nov 15, 2013 at 17:39

nderscore

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