Question

144

How to replace several words in javascript

rated 0 times [ 146] [ 2] / answers: 1 / hits: 20970 / 14 Years ago, mon, january 24, 2011, 12:00:00

I wanna replace several words in a text using replace() in javascript, how can I do that?

For example, if I wanna replace, 'Dave Chambers, David Chambers, Will Smith' with 'Jackie Chan', no matter if they're in upper-case or lower-case, do I have to keep repeating the replace() method on the same string variable everytime, i.e.

var str = sometext.innerHTML;

str.replace('Dave Chambers', 'Jackie Chan');

str.replace('David Chambers', 'Jackie Chan');

str.replace('Will Smith', 'Jackie Chan');

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answered 14 Years ago billie · Accepted Answer

Use a regular expression with the alternator (|) and case insensitive modifier (/i):

var str = sometext.innerHTML,

    reg = /Dave Chambers|David Chambers|Will Smith/i;



str = str.replace(reg, Jackie Chan);

A shorter, more complex regex could be:

/Dav(?:e|id) Chambers|Will Smith/i;

And if there may be more than 1 occurrence, add the global modifier (g) to replace all:

/Dav(?:e|id) Chambers|Will Smith/ig;

You can learn more about regular expressions here, or by searching Google. You can see a working demo here.