Javascript String print()

 //  Implementation of the sprintf-functionality
//  Example: "abc test: %01.2f".print(123.1);


String.prototype.print = function() {

    var arr = new Array();
    arr[0] = this;//  w  ww  .  j a  v  a 2  s. c o m
    for (var i=0; i<arguments.length; i++) {
        arr.push(arguments[i]);
    }
    response.write(require("sprintf").sprintf.apply(this, arr));
    return this;
};


exports.print = function (mixed) {

    if (arguments.length==1) {
        response.write(mixed);
    }
    else {
        response.write(require("sprintf").sprintf.apply(this,arguments));
    }
    return this;
};