Scope of Variables in JavaScript

In JavaScript, scope is the context that determines where variables can be accessed, helping write cleaner and error-free code.

// Declaring a global variable
let x = 10;

function func() {
    
    // Declaring a local variable
    let y = 20;

    // Accessing Local and Global
    // variables
    console.log(x,",", y);
}

func();

TechCorp , Alice

There are mainly different types of scopes of a variable. Let us understand these one by one.

1. Global and Local Scope

The image below shows Global and Local Scope in JavaScript to help understand their accessibility.