Javascript Data Types, Variables and Comments with Example

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In this video tutorial, we will study and understand the concept of Variables, Data Types & Comments in JavaScript.
Variables-
Following are some basic definitions of variables in a typical programming language context.
A variable provides us with named storage that our programs can manipulate. It is the basic unit of storage in a program.
Variables are used to store information to be referenced & manipulated in a computer program.
In programming, a variable is a value that can be changed depending on the conditions or information being passed to the program.

Data Types-
Datatypes are basically types of data that can be used and manipulated in a program. For e.g. numbers (1, 2, 5,5), string (“hello Simple Snippets”, “JS”), boolean(true, false) etc.

JavaScript provides different data types to hold different types of values. There are two types of data types in JavaScript.(As shown in the diagram above)
Primitive data type (string, number, boolean, null, undefined)
Non-primitive (reference) data type (objects, arrays)
For Program code, info & more resources check out this article
and Comments we have Single Line & Multi-Line

#variables #javascript variables #datatype #Datatypes Javascript

TOC

00:00 Introduction
00:16 Table of content
00:21 What is variable
00:40 Javascript Practical
05:45 Variable Types
06:43 Understanding Variable
07:02 Javascript Practical 2
11:32 JavaScript variables
12:03 Reserved Keywords
12:08 Deeply Dive into Data Types
12:36 Javascript Practical 3

#javascript #datatypes #comment #string #variables