In the fast-changing technical landscape of today, coding is not a unique advantage; it's a basic necessity. From a software engineer to a data analyst or digital marketer, being able to code will greatly expand the opportunities one has for their careers and how effective they can be in their jobs. This essay discusses how coding skills help one's career in the tech field and gives the basic concept of coding: objects, a building block for any modern programming language.1. Creates Employment OpportunitiesIn the digital era, when virtually all businesses are based on technology to some extent...

The design of JavaScript is not so sophisticated. It's very easy for us to make mistakes if we are not very careful when using JavaScript. For example, to check the existence of JavaScript object.Now we want to check whether a global object myObj exists or not, if it doesn't exist, we declare it. The pseudo code for this is :if(myObj not exist){ declare myObj;}You may think it's very easy to write the code. In fact, it is much more difficult than we may think. Juriy Zaytsev says there are more than 50 ways to check whether a JavaScript object exist or not. Only if you are very clear about the ...

ECMAScript 5 is on its way. Rising from the ashes of ECMAScript 4, which got scaled way back and became ECMAScript 3.1, which was then re-named ECMAScript 5 (more details)- comes a new layer of functionality built on top of our lovable ECMAScript 3.Update: I've posted more details on ECMAScript 5 Strict Mode, JSON, and More.There are a few new APIs included in the specification but the most interesting functionality comes into play in the Object/Property code. This new code gives you the ability to dramatically affect how users will be able to interact with your objects, allowing you to provid...

Following my article A String is not an Error, I want to bring attention to an issue that similarly applies to JavaScript in general, but has special relevance in the Node.JS environment.The problem boils down to the usage of {} as a data-structure where the keys are supplied by untrusted user input, and the mechanisms that are normally used to assert whether a key exists.Consider the example of a simple blog created with Express. We decide to store blog posts in memory in a {}, indexed by the blog post slug. For example, this blog post would be posts['an-object-is-not-a-hash'].We start writin...

The object literal notation in JavaScript looks like:var fido = {name: "Fido", barks: true};or var fido = {};fido.name = "Fido";fido.barks = true;From assoc arrays to objectsIn PHP you would call that an associative array. $fido = array( 'name' => "Fido", 'barks' => true);And you can easily make it an object too:$fido = (object)$fido;echo gettype($fido); // "object"Or if you want to start with a blank object and add stuff to it:$fido = (object)array();or$fido = new StdClass();and then$fido->name = "Fido";$fido->barks = true;A little explanation maybe: objects in JavaScript are ha...