Nodejs String Camel Case toCamelCase()

Method Source Code

/**//  w  w  w .j  av  a  2 s  .  c  om
 * This function returns a camelCased version of the string.
 *
 * @method
 * @public
 *
 * @returns A camelCased version of this string.
 */
String.prototype.toCamelCase = function() {
  var str = this.toLowerCase();
  var modified = '';

  var mark = false;
  for (var i = 0; i < str.length; i++) {
    if (str[i] === '_') {
      mark = true;
      continue;
    }

    if (mark) {
      if (modified.length > 0) {
        modified += str[i].toUpperCase();
      } else {
        modified = str[i];
      }
      mark = false;
    } else {
      modified += str[i];
    }
  }

  return modified;
};

Related

1. toCamelCase()

   String.prototype.toCamelCase = function() {
       return this.toLowerCase()
           .replace(/[-_]+/g, ' ')
           .replace(/[^\w\s]/g, '')
           .replace(/ (.)/g, function($1) {
               return $1.toUpperCase();
           })
           .replace(/ /g, '');
   };
   ...
   

2. toCamelCase()

   String.prototype.toCamelCase = function () {
       return this.charAt(0).toLowerCase() + this.slice(1);
   };
   

3. toCamelCase()

   String.prototype.toCamelCase = function() {
     words = this.split(' ')
     var upperCased = '';
     for (var i = 0; i < words.length; i++) {
       for (var y = 0; y < words[i].length; y++) {
         if (y == 0) {
           upperCased += words[i][y].toUpperCase();
         else {
   ...
   

4. toCamelCase()

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

5. toCamelCase()

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

6. toCamelCase()

   String.prototype.toCamelCase = function() {
     return this.replace(/[- ](\w)/g, function(match) {
       return match[1].toUpperCase();
     });
   

7. toCamelCase(delimiter)

   "use strict";
   var toCamelCase = function (string) {
       if (string.substr(0, 2) !== string.substr(0, 2).toUpperCase()) {
           return string.substr(0, 1).toLowerCase() + string.substr(1);
       else {
           return string;
   };
   ...
   

8. toCamelCasej()

   String.prototype.toCamelCase  = jCube.String.toCamelCase  = function () {
     return this.replace( /-\D|-\d/g, function(s){ return s.charAt(1).toUpperCase()}).replace( /\s\D|\s\d/g, function(s){ return s.charAt(1).toUpperCase()});
   

9. toLittleCamelCase()

   String.prototype.toLittleCamelCase = function () {
     var sourceStr = this.toString();
     var str = '';
     var strArr = sourceStr.split('-');
     strArr.forEach(function (el) {
       str = str + el.firstUppserCase();
     })
     str = str.firstLowerCase();
     return str;
   ...