Nodejs Utililty Methods String Replace

function escapeRegExp(string) {
    return string.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
String.prototype.replaceAll = function (find, replace) {
    return this.replace(new RegExp(escapeRegExp(find), 'g'), replace);

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

String.prototype.replaceAll = function(find, replace){
  find = find.escapeRegExp();
  return this.replaceAllRegExp(find, replace);
};

String.prototype.replaceAll = function (find, replace) {
  return this.replace(new RegExp(find, 'g'), replace);
};
String.prototype.sanitize = function () {
  var s = this.replace(/\W+/g, "");
  return s;
};

String.prototype.replaceAll = function(find, replace) {
  var str = this;
  return str.replace(new RegExp(find, 'g'), replace);
};

String.prototype.replaceAll = function (find, replace) {
    var str = this;
    return str.replace(new RegExp(find.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'), replace);
};

String.prototype.replaceAll = function (from, to) {
  if (from == ".")
    return this.replace(/\./g, to);
  var rgx = new RegExp(from, 'g');
  return this.replace(rgx, to);
};

String.prototype.replaceAll = function(from, to)  {
   var str = this;
   while(str.indexOf(from)>=0) {
      str = str.replace(from, to);
   return str;

String.prototype.replaceAll = function(from, to, caseSensitive){
    var target;
    if (caseSensitive === true) {
        target = new RegExp(from, 'g');
    }else{
        target = new RegExp(from, 'gi');
    return this.replace(target, to);
};
...

String.prototype.replaceAll = function(oldStr, newStr){
  let s = this.toString();
  if(oldStr instanceof RegExp){ let a = this.match(oldStr); oldStr = a === null ? '' : a[0]; }
  if(oldStr !== '') while(s.indexOf(oldStr) != -1){ s = s.replace(oldStr, newStr) }
  return s;
};