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At work we're using a custom JavaScript engine that has regular expressions disabled for performance reasons.

I've gotten stuck with this problem for the last couple of hours. I simplified it for this post. Let's say I have this string:

var str = "nice weather, nice car, nice clothes, nice tv";

I want to replace all occurrences of "nice" with "ugly".

JavaScript's replace() function does just that - it replaces "nice" with "ugly" but here's the problem - if I do str.replace("nice", "ugly") then JavaScript will replace only first occurance of "nice" with "ugly".

I know that the solution to replace all occurrences is to use a regular expression such as /nice/g to match globally and run it as str.replace(/nice/g, "ugly") but in my case, I can't use a regular expression (because as I mentioned we use a custom JavaScript engine with regular expression engine disabled.)

Bottom line is: I can't figure out how to replace a string with just replace() function. How can I do it?

Webprogrammer
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1 Answers1

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Easiest way is to use a combination of .split and .join:

var str = "nice weather, nice car, nice clothes, nice tv";
var newStr = str.split("nice").join("ugly");
console.log(newStr);

(PS using a "custom Javascript engine" sounds like a really really bad idea.)

Nick Parsons
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Robin Zigmond
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