TWO NEW SHOWS



Comments

Post a Comment

Popular posts from this blog

JavaScript private Python style properties - yet another experiment

JavaScript constructors (call them classses if You prefere) have some problem with private parameters or private methods. To use a private parameter You should simply use a variable without this as scope prefix function MyConstructor(){ this.getPrivate = function(){ return private; }; var private = "something"; }; It's simple and it works perfectly. Any external scope could get directly private variable and You can know its value only calling getPrivate method. var obj = new MyConstructor; alert(obj.getPrivate()); The cool thing is that if You change externally returned value it will not be changed inside object too but please remember that if You change them and it's a generic object or an array, these changes will be valid inside object scope too (object and arrays are sent by reference, You need to clone or copy them before to return them externally). Well, this is just a private parameters introduction and this is not useful if You write only using prototype ...
Read more

PHP - JavaScript like Object class

As I've wrote in last post, there's some JavaScript feature I would like to have in PHP too. This time we will use a basic implementation of JavaScript Object constructor in PHP. What we need to start is this class, based on SPL ArrayAccess interface. class Object extends stdClass implements ArrayAccess { // (C) Andrea Giammarchi - webreflection.blogspot.com - Mit Style License // static public methods static public function create(){ return new Object; } static public function parseJSON($json){ return self::create()->extend(json_decode($json)); } static public function parseSource($source){ return self::create()->extend(unserialize($source)); } // basic JavaScript like methods public function extend(){ for($i = 0, $length = count($arguments = func_get_args()); $i foreach($arguments[$i] as $key => $value) $this->$key = $value; return $th...
Read more

Partial Polyfills

This is a quick one already discussed during my recent workshop in Warsaw, a concept rarely considered or adopted from JS developers. What Are Polyfills If we are updated enough to know ECMAScript 5th Edition, we probably know all possible shims and fallbacks for Array extras as well (e.g. Array.prototype.forEach ). Polyfills are simply snippets able to bring features already available for most recent browsers into those not updated yet. Why Polyfills If we develop with present and future in mind, we can take advantage of most recent techniques and solutions in order to both speed up via native support, where available, and maintain our application just stripping out code once all target browsers support them natively ... isn't this cool ?! Polyfills Side Effects The most common side effect of a polyfill is performances impact . The Array::forEach is already a good example of decreased performances. If we think about a forEach, it's nothing different than a classic for loop , e...
Read more