Find and Replace in JavaScript String

[Wilbur]

I can update or replace part of a string by another string in c program it is also possible in C++ program but the same logic doesn't work JavaScript. Can any one tell me the function which is used in java script to search and replace string.

[Zecho]

String functions are available in programming languages like JavaScript.JavaScript's String Object has a handy function that lets you replace words that occur within the string. These string functions allow manipulation and comparison of strings, including replacement of characters with other characters.

[Walby]

<script type="text/javascript">
var visitorName = "chk";
var myOldString = "Hello chk";
var myNewString = myOldString.replace("username", visitorName);

document.write("Old string =  " + myOldString); 
document.write("<br />New string = " + myNewString);

</script>

[Aberto]

function replace( str, from, to ) {
    var ix = str.indexOf( from );


    while ( ix > -1 ) {
        str = str.replace( from, to ); 
        ix = str.indexOf( from );
    }

    return str;
}

var string = "{7} 123 Main St {8} Vancouver CA {4}";

string = replaceAll( string, "{7}", "#" );
string = replaceAll( string, "{8}", "," );
string = replaceAll( string, "{4}", " " );

alert( string );

[MindSpace]

The JavaScript function for String Replace replaces the first occurrence in the string. The function is similar to the php function str_replace and takes two simple parameters. Javascript's built-in String replace method String::replace() is a pretty darn powerful method. The first parameter is the pattern to find and the second parameter is the string to replace the pattern with when found.

[Katty]

<script type="text/javascript">

var str="javascript string ";
document.write(str.replace("javascript", "string"));

</script>