JavaScript Struggles - Part 1 | Defending Variables

Defending variables in JS have its own way.

We have three ways to defend a variable let, var, const.

We mostly use let because of the block scope which I'll explain in the below. 👇🏻

Let

The keyword let makes a variable only useable within the scope it made in, you can't use it outside that scope.

E.g.

Var

The keyword var makes a global variable, you can use it everywhere in the code.

E.g.

Const

The keyword const makes an unchangeable variable, you can't change its value.

E.g.