What is dynamic typing in JavaScript

When learning a programming language, knowing variable types that programming language supports is an important part. Taking about variable types in JavaScript there are two important thing

• JavaScript is a dynamically typed language.
• There are 6 primitive types in JavaScript.

What is dynamic typing

JavaScript is a language that supports dynamic typing. That means, we don't have to tell the JavaScript engine what type of data a variable holds. It figures it out while code is running.

Single variable can hold different types of values at different times of execution of code because it is all figured out during execution.

In static typing we need to specify the what type of data a variable is going to hold and we cant store other types of data in that variable

As an example, in a static typed language like java we can't store a string in a variable that is declared as a boolean.

boolean variable = "hello"; // gives error

But, in a dynamically typed language like JavaScript it can be done without errors.

var box = true;
box = "hiii";
box=3;
//no errors

This is a powerful feature of JavaScript and sometimes it can cause problems as well (If you don't have a proper understanding).