How to replace string in javascript?

Question

I have a string which is like

var test="clientNumber=123,TestSubject=Tom";

I need to replace Tom with Mary. Tom is entered by the user and could be anything but i need to make it Mary while processing . Also clientNumber & TestSubject could be in any order in the string.

Thanks

Do you specifically need to replace TestSubject=Tom with TestSubject=Mary, or do you need to replace any occurrence of Tom with Mary? — Alexis King
– Alexis King, Commented Jan 2, 2014 at 20:04
I would split the string by the , so that there is an array. Find out which one contains TestSubject and use a regex that find the string that matches that and replace it with TestSubject=Mary — Jack Thor
– Jack Thor, Commented Jan 2, 2014 at 20:09

Denys Séguret · Accepted Answer · 2014-01-02 20:10:17Z

5

You seem to want to use a regular expression, for example

test = test.replace(/(TestSubject=)[^,]*/, '$1Mary')

The code I give replaces everything between "TestSubject=" and the end of string or the next comma.

This changes

"clientNumber=123,TestSubject=Tom" into "clientNumber=123,TestSubject=Mary"

and

"TestSubject=Tom,clientNumber=123" into "TestSubject=Mary,clientNumber=123"

edited Jan 2, 2014 at 20:10

answered Jan 2, 2014 at 20:04

Denys Séguret

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