String to binary/binary to string prototypes [JS]

[Peter]

Two prototypes here which will convert string to binary and binary to string.

<script type="text/javascript">
<!--

// String to binary
String.prototype.str2bin = function(){
    if(this){
       var output = "";
       for(s = 0; s < this.toString().length; s ++){
          for(b = 128; b; b >>= 1){
             output += (this.charCodeAt(s) & b)? "1" : "0";
          }
       }
       return output;
    }
}

// Binary to string
String.prototype.bin2str = function(){
    if(this){
       var output = "", s = -8; e = 0;
       while((this.length % 8) == 0 && e != this.length){
          output += String.fromCharCode(parseInt(this.substring(s += 8, e += 8), 2));
       }
       return output;
    }
}

//-->
</script>

Example of how to use them:


// String to binary
var oString = "Hello there!";
var binaryString = oString.str2bin();
alert(binaryString);

// Binary to string
var oString2 = binaryString.bin2str();
alert(oString2);

[chemdude]

Neat. Way to take advantage of OOP.