Nodejs String Camel Case camelCase()

Method Source Code

// Write simple .camelcase method (camel_case function in PHP) for strings. All
// words must have their first letter capitalized without spaces.

// For instance://from w w w.j a v a 2s  . c o  m
// "hello case".camelCase() => HelloCase
// "camel case word".camelCase() => CamelCaseWord

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;
};
console.log("test case".camelCase(), "TestCase");
console.log("camel case method".camelCase(), "CamelCaseMethod");
console.log("say hello ".camelCase(), "SayHello");
console.log(" camel case word".camelCase(), "CamelCaseWord");
console.log("".camelCase(), "");

Related

1. 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();
   

2. 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('');
   

3. camelCase()

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

4. 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("");
   

5. camelCase()

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

6. camelCaseDash()

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

7. 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', {});
   

8. 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;
   

9. camelCaseToWords()

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