Nodejs Utililty Methods String Replace

String.prototype.replaceAllRegExp = function(find, replace){
  return this.replace( new RegExp( find, "g" ), replace );
};

String.prototype.replaceAll  = jCube.String.replaceAll  = function( sToSearch, sReplacement) {
  return this.replace( RegExp(sToSearch, "g"), sReplacement);

String.prototype.replaceArgs = function(args)
    var re = new RegExp("%([0-9]+)", "g");
    var replacerCallback = function(match, p1, offset, string)
        return args[parseInt(p1) - 1];
    return this.replace(re, replacerCallback);

String.prototype.replaceAt=function(i, c) {
    return this.substr(0, i) + c + this.substr(i + c.length);

String.prototype.replaceAt = function(index, ch) {
  return this.substr(0, index) + ch + this.substr(index + ch.length);
};

String.prototype.replaceAt=function(index, char) {
    return this.substr(0, index) + char + this.substr(index+char.length);

String.prototype.replaceAt = function(index, char) {
    var a = this.split("");
    a[index] = char;
    return a.join("");
};

String.prototype.replaceAt=function(index, character) {
    return this.substr(0, index) + character + this.substr(index+character.length);

String.prototype.replaceAt = function (index, character) {
  'use strict';
  return this.substr(0, index) + character + this.substr(index + character.length);
};

String.prototype.replaceAt = function(index, character) {
    return this.substr(0, index) + character + this.substr(index+character.length);
var  test =  function t () {
  console.log("rest");
var testString = test.toString();
console.log(testString);
var test2 = '('+testString.replaceAt(testString.length-1, "console.log(1); }());");
...