Here you can find the source of ucfirst()
String.prototype.ucfirst = function() { return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase(); }
String.prototype.uc_first = function() { return this.charAt(0).toUpperCase() + this.slice(1); };
String.prototype.ucfirst = function () { return this.charAt(0).toUpperCase() + this.slice(1); };
String.prototype.ucfirst = function() { return this.charAt(0) + this.slice(1);
String.prototype.ucfirst = function() { return this.charAt(0).toUpperCase() + this.slice(1);
String.prototype.ucfirst = function() return this.charAt(0).toUpperCase() + this.substr(1); };
String.prototype.ucfirst=function(){ var split=this.split(''); split[0]=split[0].toUpperCase(); return split.join(''); };
String.prototype.ucfirst = function() { this.toLowerCase().replace(/\b([a-z])/, function(c){ return c.toUpperCase(); }); };
String.prototype.ucfirst = function() { return this.charAt(0).toUpperCase() + this.substr(1); }; function isset(args) { return (typeof args !== 'undefined' && args !== null);
String.prototype.ucfirst = function() { return this.charAt(0).toUpperCase() + this.slice(1); String.prototype.lcfirst = function() { return this.charAt(0).toLowerCase() + this.slice(1);