Breaking News: Grepper is joining You.com. Read the official announcement!

javascript variable scope

Add Answer

Rasel Ahmed answered on May 21, 2022 Popularity 10/10 Helpfulness 2/10

answer javascript variable scope

related javascript scope

related JavaScript Variable Scope

javascript variable scope

Comment

/*
In JavaScript, a variable has two types of scope:
1. Global Scope
2. Local Scope
*/

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: www.programiz.com

Tags: javascript scope

Link to this answer
Share Copy Link

Contributed on Jun 17 2022

Rasel Ahmed

0 Answers Avg Quality 2/10

Closely Related Answers

javascript scope

Comment

//there are three main types of scopes. Namely global scope, local scope and block scope
//In order to understand the concept lets consider the followin examples

//Global scope:
//Global Scopes variable can be accessed anywhere in the code
let globalVar = "Global variable. I can be accessed anywhere in the code"

//Local scope:
//It can only be accessed where it is defined
function localVar(){
	let local = "Local variable. I can be accessed only inside this function"
    console.log(local)
}
localVar()
//Block scope:
//It is used in conditional statements and loops, so thses are only accessed within that block
if(true){
	let blockVar = "Block variable. I can be accessed only within this block"
    console.log(blockVar);
}

//Now in order to test the above statements consider the following example.
//In the following example only the globalVar is will print the message
function testing(){
	console.log(globalVar)
    console.log(local)
    console.log(blockVar)
}
testing()

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 10 2024

Cyber-Ninja

0 Answers Avg Quality 2/10

JavaScript Variable Scope

Comment

// program to print a text 
let a = "hello";

function greet () {
    console.log(a);
}

greet(); // hello

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

javascript variable scope

Contents

More Related Answers

javascript variable scope

Closely Related Answers

javascript scope

JavaScript Variable Scope

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.