What is scope in JavaScript

Variable Scope in JavaScript

JavaScript has two types of scopes: global and local. A variable that is declared outside a function definition is a global variable, and its value is accessible and modifiable throughout your program.

A variable that is declared inside a function definition is local. It is created and destroyed every time the function is executed, and it cannot be accessed by any code outside the function.

 var x = 10;   
        function xyz(){       
var y = 5;     
} 

Here x is the global variable and it hsa global scope. We can access x inside the function and outside of it.

Here y is the local variable and it has local scope. we can only access it inside of the function.

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