Applies to: String Object
The replace method returns a copy of a string with text replaced using a regular expression.
Syntax
stringObj.replace(rgExp, replaceText)
The replace method syntax has these parts:
Part |
Description |
stringObj |
Required. The String object or literal on which to perform the replace. This object is not modified by the replace method. |
rgExp |
Required. A Regular Expression object describing what to search for. |
replaceText |
Required. A String object or literal containing the text to replace for every successful match of rgExp in stringObj. |
Return value
The replace method returns a copy of a string with text replaced using a regular expression.
Example
The result of the replace method is a copy of stringObj after all replacements have been made.
The method updates the contents of the RegExp object.
The following example illustrates the use of the replace method:
function replaceString(str,oldstr, newstr)
{
var r, re;
re = new RegExp(oldstr);
r = str.replace(re, newstr);
return(r);
}document.write(replaceString("The quick brown fox jumped over the lazy yellow dog.","fox", "pig"));
|
 To run the code, paste it into JavaScript Editor, and click the Execute button.
See also: exec method, match method, RegExp Object, search method, String Object methods, test method |
