Nodejs String Camel Case underscore_to_camel()

Method Source Code

String.prototype.underscore_to_camel = function() {
  return this.replace(/_[a-z]/, function(m){ return m.substring(1).toUpperCase(); })
}

String.prototype.capitalize = function() {
  return this.replace(/^[a-z]/, function(m){ return m.toUpperCase(); })
}

String.prototype.repeat = function(num) {
  return new Array( num + 1 ).join( this );
}

Related

1. 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;
   };
   ...
   

2. 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()});
   

3. 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;
   ...
   

4. to_camelCase()

   String.prototype.to_camelCase = String.prototype.to_camelCase || function(){
       var split = this.split('_').filter(Boolean);
       var len = split.length;
       var camelCaseString = '';
       for (var i=0;i<len;i++) {
           if(i===0){
               camelCaseString = camelCaseString + split[i].toLowerCase();
           else{
   ...
   

5. unCamelCase()

   String.prototype.unCamelCase = function(){
     return this
       .replace(/([a-z])([A-Z])/g, '$1 $2')
       .replace(/\b([A-Z]+)([A-Z])([a-z])/, '$1 $2$3')
       .replace(/^./, function(str){ return str.toUpperCase(); })