React Js Series for Beginners தமிழில் 4 : Variables in Javascript

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A programming language is a set of rules that tells a computer what to do. It’s a way for people to give instructions to computers. We use programming languages to create software, do maths, and solve problems. Examples include JavaScript, Python, and Java.

Variables are used to store and manage data. To create a variable, you start with a keyword and then give the variable a name. This helps you keep track of values like numbers, text, or objects in your code.

The var keyword is the old way to create a variable, but it has some issues, like only working within a function.

The let keyword is newer and lets you change the value of a variable and is limited to the block of code it’s in.

The const keyword makes a variable that you can’t change once it’s set.

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🕘Timestamps:
00:15 - What is Programming Language
00:55 - What is Variable
02:00 - How to declare Variable
03:00 - Declare variable with var, let & const


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