Javascript String upperFirstChar()

Object.extend = function(obj){
 Array.prototype.slice.call(arguments, 1).forEach(function(source) {
   for (var prop in source) {
     if (source[prop] !== void 0) obj[prop] = source[prop]
   }//from  w  w w . j a va2  s  .  co m
 })
 return obj
}

String.prototype.upperFirstChar = function() {
  return this.charAt(0).toUpperCase() + this.slice(1)
}

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