Nodejs String Camel Case camelCase()

Method Source Code

// Write simple chainable .camelcase method for strings.
// All words must have their first
// letter capitalized without spaces.
///*from   ww w  .ja  v a2s  . c  om*/
// For instance:
//
// "hello case".camelCase() => HelloCase
// "camel case word".camelCase() => CamelCaseWord
//

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


console.log(
  "hello case".camelCase(), // => HelloCase
  "camel case word".camelCase() // => CamelCaseWord
);

Related

1. camelCase()

   String.prototype.camelCase = function() {
       return this
           .replace(/\s(.)/g, function($1) { return $1.toUpperCase(); })
           .replace(/\s/g, '')
           .replace(/^(.)/, function($1) { return $1.toLowerCase(); });
   

2. camelCase()

   String.prototype.camelCase=function(){
       var a = this.split(' ');
       return a.map(function(val){
         return val.replace(/^[a-z]/, camelCaseFirstLetter);
       }).join('');
   function camelCaseFirstLetter(a){
     return a.toUpperCase();
   

3. camelCase()

   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('');
   

4. camelCase()

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

5. camelCase()

   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("");
   

6. camelCase()

   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;
   ...
   

7. camelCaseDash()

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

8. camelCaseToNormalText()

   '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', {});
   

9. camelCaseToSpineCase()

   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;