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How to replace a token in a string with square brackets?

Posted on 2016-11-04
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Last Modified: 2016-11-04
I'm trying to replace the token "[RANDOMNUMBER]" in a string but my code is not working? I've tried single and double backslashes and it hasn't worked?
function detokenizeTags(imgSrc){
	var rn = Math.random() + "",
        rnd = rn * 10000000000000;
	imgSrc.replace(/\[RANDOMNUMBER\]/g,rnd);
        return imgSrc; 
    }

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sample string:   //ad.amgdgt.com/ads/?t=ap&px=79079&rnd=[RANDOMNUMBER]
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Question by:894359
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2 Comments
 
LVL 35

Accepted Solution

by:
Robert Schutt earned 500 total points
ID: 41875127
From MDN:
Description:
This method does not change the String object it is called on. It simply returns a new string.
So you need to return the result of the replace from your function instead of the original string object:
function detokenizeTags(imgSrc){
	var rn = Math.random() + "",
        rnd = rn * 10000000000000;
	return imgSrc.replace(/\[RANDOMNUMBER\]/g,rnd);
    }

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Here's the fiddle I tested with: https://jsfiddle.net/2xLwpu75/
0
 

Author Closing Comment

by:894359
ID: 41875131
I knew it was something stupid I overlooked! That's what I get for being up almost 2 days straight now! Much appreciated!
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