Basics of JavaScript (variable, datatype, function, array, loop and more)

In this article, we have explained the Basics of JavaScript (variable, datatype, function, array, loop and more).

Table of Contents
1. Introduction2. Working with JavaScript in the HTML file3. Type of Variables3.1. Var3.2. Let3.3. Const4. Data Types4.1. String4.2. Number4.3. Boolean4.4. Null4.5. Undefined4.6. Symbol4.7. Object5. Functions6. Array and Methods7. Loop7.1. For7.2. For...in7.3. While8. Math Methods9. Class10. Conditional Structures10.1. If...else10.2. Switch...