Replace Method in JavaScript

kwilliams · April 3rd, 2007, 11:13 AM

I'm trying to use the replace method to replace all instances of "a" and "b" characters within a string, but I'm running into a problem. I have accomplished this in my VB version without a problem, but the JavaScript version is only replacing the first instance of the character in the string. I've included all of the referenced code below. If anyone could please let me know what I'm doing wrong, that would be great. Thanks for any and all help.

Problem: JS version replaces only the first instance of a character, while the VB version replaces all instances of characters.

Example value: bababa

VB version (works):
'Declare variables
Dim strA As String = "ZZ~"
Dim strB As String = "YY~"
Dim strValue_display As String = strValue_original
strValue_display = strValue_display.replace("a",strA)
Response.Write("strValue_display (a):" & strValue_display & "<br />")
strValue_display = strValue_display.replace("b",strB)
Response.Write("strValue_display (b):" & strValue_display & "<br />")
'Resulting value: YY~ZZ~YY~ZZ~YY~ZZ~

JScript version (doesn't work):
//Declare variables
var strA = "ZZ~";
var strB = "YY~";
var strValue_display = strValue_original;
strValue_display = strValue_display.replace("a",strA);
Response.Write("strValue_display (a):" + strValue_display + "<br />");
strValue_display = strValue_display.replace("b",strB);
Response.Write("strValue_display (b):" + strValue_display + "<br />");
//Resulting value: YY~ZZ~baba

KWilliams

joefawcett · April 3rd, 2007, 11:22 AM

replace takes a regular expression:

Code:

var s = "Joe Fawcett";
var oRE = /e/g; //g flag for global replace, i for case insensitive
var sNew = s.replace(oRE, x);
//sNew = "Jox Fawcxtt"

--

Joe (Microsoft MVP - XML)

kwilliams · April 3rd, 2007, 12:50 PM

It worked great! Thanks for the quick response.

KWilliams