Scope of Variables in JavaScript

Scope A variable is not always available everywhere in your program. Some variables can be used...

sabato 11 luglio 2026 New tab

256 words~1 min read

Scope

A variable is not always available everywhere in your program. Some variables can be used anywhere, while others can only be used inside a function or a block.This is called Scope.

Types of Scope in JavaScript

Global Scope - A variable declared outside any function or block is called a Global Variable.It can be accessed from anywhere in the program.

Eg:

Scope of Variables in JavaScript

Scope of Variables in JavaScript

Related reading

JavaScript Variables and Operators

Variable Scope and Variable Shadowing in Golang

`var`, `let`, and `const` in JavaScript

Javascript Variables

Closures and Scope in JavaScript: Lexical Scope, Closures, and IIFE Explained

var, let, Single & Multi-thread and Process in JavaScript

Related reading

JavaScript Variables and Operators

Variable Scope and Variable Shadowing in Golang

`var`, `let`, and `const` in JavaScript

Javascript Variables

Closures and Scope in JavaScript: Lexical Scope, Closures, and IIFE Explained

var, let, Single & Multi-thread and Process in JavaScript