Javascript and regex for replace text with multiple

Question

I want to replace some words with regex.

For example:

var str ="hello world |bo hello world bo| hello world  |co hello world co| hello world,hello world |jp hello world hello world jp| "

var n=str.replace("world","stackoverflow");

Please clarify: do you mean to say that replacements cannot be done within those string pairs, kind of like "replace if not inside quotes? — CrayonViolent
– CrayonViolent, Commented Jun 9, 2012 at 13:41
I rephrased your question so that it is easier to understand (this is the original question). It seems like you want to replace world everywhere but not when it is inside these delimiters. That said, maybe I did not understand it correctly. If that is the case, please clarify it. — Felix Kling
– Felix Kling, Commented Jun 9, 2012 at 13:42

James Hill · Accepted Answer · 2012-06-09 13:38:13Z

2

Use /g to indicate a global replace:

var n=str.replace(/world/g,"stackoverflow");

Here's a working fiddle to demonstrate.

Additional Info

Take a look at MDN for more information on RegEx flags.

answered Jun 9, 2012 at 13:38

James Hill

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1 Comment

user1431897 Over a year ago

mozey · Accepted Answer · 2012-06-09 14:49:13Z

0

Consider this, it replaces "bb" with "xx" but not when "bb" is surrounded by "a".

t = "bb abba bb abba bb";
t = t.replace(/(?!a)bb(?!a)/g, "xx");
// t === "xx abba xx abba xx"

answered Jun 9, 2012 at 14:49

mozey

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