how to split a string based on value in javascript

Question

Is there a way to seperate a string into an array based on value? For example if I have a string "1119994444455" how would I turn that into [111, 999,44444,55]? I've attempted doing this but my method doesn't seem to be working.

my code:

var nums = [];

for(i in input){
    i = parseInt(i);

    if(i - beforeI != 0 && beforeI >= 0){
        insertionIndex++;
    }

    nums[insertionIndex] += i.toString();
    console.log(nums[insertionIndex]);

    var beforeI = i
}

thefourtheye · Accepted Answer · 2015-06-26 15:40:06Z

2

You can simply use a Regular Expression, like this

console.log("1119994444455".match(/(\d)\1*/g));
// [ '111', '999', '44444', '55' ]

Here, (\d) captures a number and \1* matches zero or more occurrences of the same captured number. The g at the end makes sure we don't stop after finding the first such match.

answered Jun 26, 2015 at 15:40

thefourtheye

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