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Distinction between fields and properties Within a class body, there are a range of features available. The structure of a class definition via the class keyword is class MyClass { // Constructor constructor() { // Constructor body } // Instance field myField = "foo"; // Instance method my...

Runtime Code vs Library Code First of lets clarify a distinction between the following concepts in a programming language. Core or runtime code of a Programming language: Defines the interpreter or compiler Library Code : Code written on the same programming language (same level of abstraction) that defines basic functionalities that every...

Now that we have established the relationship between instanceObject.__proto__ (we are going to use Object.getPrototypeOf()) , and Constructor.prototype we see that. function Food () { } var popcorn = new Food(); console.log(Object.getPrototypeOf(popcorn) === Food.prototype); // True We can set its prototype properties as function Food () ...

In its most basic form proto is a built-in property in all objects in JS , that you set to other object so it inherits its properties. The firstObject will inherit secondObjects properties , and the properties of the secondObject.proto object and so on. let tangible = { isTouchable: true } let resource = { hasUtility: true, __proto_...

First off All object literals in javascript inherit from Object.prototype global object var myObject = { }; console.log(myObject instanceof Object); // True console.log(myObject instanceof Function); // False Also, out of the inheritance model we can say that Javascript objects have a property called prototype accessed as proto ,...

Global-Scope vs Local-Scope In terms of the call-stack Global-Scope vs Local-Scope Global Scope: The global scope represents the outermost scope in JavaScript. Variables and functions declared in the global scope are accessible from anywhere in the script. When a JavaScript program starts executing, the global scope is created and remai...

In the same way you can create Accesor properties which are a bit different. Associates a key with one of two accessor functions ( get and set ) to retrieve or store a value. An accessor property has the following attributes: get A function called with an empty argument list to retrieve the property value whenever a get access to ...

Javascript Intermediate 3 - Object data properties and its descriptors Internaly each object data property has a set of attributes that are called descriptors, Dont confuse the attributes of a property with properties of a property, The attributes of a property are the further most division of an Object These are the following value: ...