Primitive Type vs Reference Type | JavaScript Basics ( before Typescript , node js ) - 1

Publicado em: 03 Março 2021
no canal de: Advanced Web Dev

188

JavaScript - Reference vs Primitive Values/ Types
🟪Contents -Topics covered in this video :
➡️ What is Variable ?
➡️ What are Primitive Types ?
➡️ How are Primitive Types allocated in memory of RAM with example
➡️ What are Reference Types?
➡️ How are Reference Types allocated in memory of RAM with example
➡️ Code in Online Editors
➡️ Differences between Reference and Primitive Values/ Types
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A variable can hold one of two value types: primitive values or reference values. When you assign a value to a variable, the JavaScript engine will determine whether the value is a primitive or reference value.

JavaScript Value vs Reference Types

#primitivetype #referencetype #primitivetypevsreferencetype
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Reference Vs Value In JavaScript
-TypeScript is an open-source programming language developed and maintained by Microsoft. It is a strict syntactical superset of JavaScript, and adds optional static typing to the language. In this typescript tutorial for beginners, we go over the fundamental concepts like variable declarations, variable types, functions, interfaces, classes and access modifiers.
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What is JavaScript ?
JavaScript was initially created to “make web pages alive”.

JavaScript is an open and cross platform, dynamic computer programming language which is developed to implement complex features on web pages . It is a scripting language , which is used on both client and server side. JavaScript is the language of web development. Most interactions you have with websites, including buttons you click, forms you fill, and emails you send, are implemented with JavaScript.

Data Types in JavaScript (Primitive & Reference Types)

JavaScript was initially created as a browser-only language, but it is now used in many other environments as well.

Object based vs object oriented language
Primitive types :
It consists of Number, String, Boolean, null, and undefined. -Es6 symbol

Example :
var a = 10;
var b = a;
console.log(a); // 10;
console.log(b); // 10;
Reference types :
It consists of Array, Object, and Function.

Example :
var x = {name: ‘MRK Tutorials’};
var y = x;
y.name = Subscribed;
console.log(x.name); // Subscribed
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