Nodejs Utililty Methods String Camel Case

String.prototype.camelCase=function(){
  var strArr = Array.from(this).join('').split(' ');
  return strArr.map( word => {
    var uppCase = word.charAt(0).toUpperCase();
    var replaced = word.charAt(0);
    word = word.replace( replaced, uppCase );
    return word;
  }).join('');

String.prototype.camelCase=function(){
    return this.split(' ').map((word)=>{return word.charAt(0).toUpperCase() + word.slice(1)}).join('')

String.prototype.camelCase=function(){
console.log(this);
   return this.length == 0 ? "" :this.trim()
                                 .split(" ")
                                   .map(a => a[0].toUpperCase()+a.substring(1,a.length))
                                    .join("");

String.prototype.camelCase = function () {
  return this
    .split(' ')
    .map((word) =>
      word
        .split('')
        .map( (letter, index) => (index === 0)
         ? letter.toUpperCase()
         : letter )
...

String.prototype.camelCase = function () {
  var splitArr = this.split(' ');
  var output = '';
  for (var i=0; i<splitArr.length; i++) {
    if (splitArr[i].match(/^[A-Z]+$/i)) {
      output = output + splitArr[i][0].toUpperCase() + splitArr[i].slice(1);
  return output;
...

String.prototype.camelCaseDash = function() {
  return this.replace( /(\-[a-z])/g, function( $1 ) {return $1.toUpperCase().replace( "-", "" );} );
};

'use strict';
String.prototype.camelCaseToNormalText = function () {
  return this.replace(/([A-Z])/g, ' $1').replace(/^./, function (str) {
    return str.toUpperCase();
  });
};
angular.module('uiTreeGrid', []);
angular.module('uiTreeGrid').value('uiGridConfig', {});

String.prototype.camelCaseToSpineCase = function() {
    var input = this;
    var newInput = input.replace(/\s/g, "-").replace(/([A-Z])/g, "-$1").toLowerCase();
    var inputNoRepeats = newInput.replace(/([-])\1*/g, "-"); 
    return inputNoRepeats;

String.prototype.camelCaseToWords = function(){
  return this.split(/(?=[A-Z])/).join(" ");
};

String.prototype.camelToDash = function (str) {
    if(str == undefined) {
        str = this;
    return str.replace(/\W+/g, '-')
        .replace(/([a-z\d])([A-Z])/g, '$1-$2').toLowerCase();