javascript str_replace equivalent

August 31st, 2007 • 4 comments javascript, snippets

I needed the equivalent of str_replace in JavaScript and was able to fish up this nifty piece of code! Enjoy.

/**
* str_replace
*
* This function returns a string or an array with all occurrences of
* [search] in [subject] replaced with the given [replace] value.
* If you don't need fancy replacing rules (like regular expressions), you should always use this function.
*
* @param	string	search
* @param	string	replace
* @param	string	string
*/
function str_replace (search, replace, subject)
{
var result = "";
var  oldi = 0;
for (i = subject.indexOf (search); i > -1; i = subject.indexOf (search, i))
{
result += subject.substring (oldi, i);
result += replace;
i += search.length;
oldi = i;
}
return result + subject.substring (oldi, subject.length);
}