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Series
In this series, I will explore the features of ES5 & ES6 which is the specification on which JavaScript is based and try to understand them in simple terms.
"... it all started with a big bang" Why ECMAScript was conceived? Prior to 1997 a scripting language was developed to enable some client side scripts to be executed in the browser Netscape Navigator 2.0 in September 1995 known as LiveScript, which...
What is was originally? Originally ECMAScript was developed to be a Web Scripting Language which would be used to make a web page more lively by manupulating, customizing and automating the functionalities of the existing system in which it runs. An...
As of ES5.1 classes did not exist similar to other programming languages like C++ or Java. So how do we create objects? Via literals var obj = {}; obj.myProperty = "Hello literal object!" console.log(obj.myProperty); Via constructor functions It...
In the last post we mentioned a behavior of objects created when the new keyword is used on a constructor function, i.e. JavaScript adds a property called as __proto__ which points to the prototype property of the constructor function. Note: Before...
As we have seen in our last post the association of prototype and __proto__ objects creates the interesting phenomenon of prototype based inheritance in JavaScript. EcmaScript has specified some rules for controlling the behavior of [[prototype]] ob...
In my last post we drilled down the prototype chain until we reached Object and finally hit the null. Now let's reverse our journey and say we have an object which has 2 levels of inheritance above it. So what happens when we try to access it's pa...
