Nodejs Utililty Methods String Title Case

String.prototype.toTitleCase = function () {
  var str = this;
  var newStr = '';
  var words = str.split(' ');
  for (var i = 0; i < words.length; i++) {
    newStr += ' ' + words[i].slice(0, 1).toUpperCase() + words[i].slice(1).toLowerCase();
  return newStr.trim();
};
...

String.prototype.toTitleCase = function() {
  var str = this;
  return str.toLowerCase().split(' ').map(function(word) {
    return (word.charAt(0).toUpperCase() + word.slice(1));
  }).join(' ');

'use strict';
var _ = require('underscore');
String.prototype.toTitleCase = function() {
  var exceptions = ['a', 'an', 'the', 'at', 'by', 'for', 'in', 'of', 'on', 'to', 'up', 'and', 'as', 'but', 'or', 'nor'];
  return _.map(this.split(' '), function(word) {
    return _.find(exceptions, function(compare) {
      return compare === word.toLowerCase();
    }) ? word : word.charAt(0).toUpperCase() + word.slice(1);
  }).join(' ');
...

String.prototype.toTitleCase = function() {
  var lowers = ['a', 'an', 'and', 'as', 'at', 'but', 'by', 'for', 'from', 'if',
            'in', 'into', 'near', 'nor', 'of', 'on', 'onto', 'or', 'that',
            'the', 'to', 'with', 'via', 'vs', 'vs.', 'per',
            'um', 'uma', 'e', 'como', 'em', 'no', 'na', 'mas', 'por',
            'para', 'pelo', 'pela', 'de', 'do', 'da', 'se', 'perto', 'nem',
            'ou', 'que', 'o', 'a', 'com'];
  var uppers = ["ID", "CEO", "CEOs", "CFO", "CFOs", "CNC", "COO", "COOs", "CPU", "HVAC", "GDP", "GINI", "IDHM", "R&D", "P&D", "PIB", "IT", "TI", "TV", "UI"];
  var smalls = uppers.map(function(u){ return u.toLowerCase(); });
...

var smallword=["bin","binti","to","a","for","in"];
function is_in_small(text){
  var i=0;
  while(i<smallword.length){
    if(smallword[i]==text.toLowerCase()){
      return true;
    i=i+1;
  return false;
String.prototype.toTitleCase = function () {
    return this.replace(/\w\S*/g, function(txt){
      if(is_in_small(txt)){
  return txt.toLowerCase();
      return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();}
    );
};

String.prototype.toTitleCase = function () {
  return this[0].toUpperCase() + this.substring(1).toLowerCase();
};

String.prototype.toTitleCase = function() {
  var words = this.split(' ');
  var compiledString = '';
  for (var i = 0; i < words.length; i++) {
    compiledString += (' ' + words[i].capitalize());
  compiledString = compiledString.slice(1);
  return compiledString;
};
...

String.prototype.toTitleCase = function(){
  var smallWords = /^(a|an|and|as|at|but|by|en|for|if|in|nor|of|on|or|per|the|to|vs?\.?|via)$/i;
  return this.replace(/[A-Za-z0-9\u00C0-\u00FF]+[^\s-]*/g, function(match, index, title){
    if (index > 0 && index + match.length !== title.length &&
      match.search(smallWords) > -1 && title.charAt(index - 2) !== ":" &&
      (title.charAt(index + match.length) !== '-' || title.charAt(index - 1) === '-') &&
      title.charAt(index - 1).search(/[^\s-]/) < 0) {
      return match.toLowerCase();
    if (match.substr(1).search(/[A-Z]|\../) > -1) {
      return match;
    return match.charAt(0).toUpperCase() + match.substr(1);
  });
};

String.prototype.toTitleCase = function () {
  var smallWords = /^(a|an|and|as|at|but|by|en|for|if|in|of|on|or|the|to|vs?\.?|via)$/i;
  return this.replace(/([^\W_]+[^\s-]*) */g, function (match, p1, index, title) {
    if (index > 0 && index + p1.length !== title.length &&
      p1.search(smallWords) > -1 && title.charAt(index - 2) !== ":" && 
      title.charAt(index - 1).search(/[^\s-]/) < 0) {
      return match.toLowerCase();
    if (p1.substr(1).search(/[A-Z]|\../) > -1) {
...

String.prototype.toTitleCase = function () {
    var smallWords = /^(a|an|and|as|at|but|by|en|for|if|in|of|on|or|the|to|vs?\.?|via)$/i;
    return this.replace(/([^\W_]+[^\s-]*) */g, function (match, p1, index, title) {
        if (index > 0 && index + p1.length !== title.length &&
            p1.search(smallWords) > -1 && title.charAt(index - 2) !== ":" &&
            title.charAt(index - 1).search(/[^\s-]/) < 0) {
            return match.toLowerCase();
        if (p1.substr(1).search(/[A-Z]|\../) > -1) {
...