Harold  Moen

Harold Moen


Var vs Let vs Constant | JavaScript Tutorial

This JavaScript tutorial video covers everything in depth about how let and const are hoisted and how let in js is different from var and const in JS. We will also see what happens behind the scenes in the browser when you use them in code. Another exciting part of the video is the explanation of the difference between Syntax Error, Reference Error, and Type Error in JavaScript.

what is var, let, and const in javascript. Differences between var vs let vs const in javascript. so, in ECMAScript 2015 let keyword. Let in JavaScript. The let statement allows you to declare a variable with block scope.
JavaScript const:

The const statement allows you to declare a constant (a JavaScript variable with a constant value).
Constants are similar to let variables, except that the value cannot be changed.

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Var vs Let vs Constant | JavaScript Tutorial
Coy  Roberts

Coy Roberts


Javascript let vs var: The Difference and Comparison

Javascript let, and var are both used for variable declaration. Before the ES6, JavaScript had only two types of scope:

  1. Global Scope
  2. Function Scope

Global Scope

Variables that are declared Globally (outside any function) have Global Scope.

var netflixFilm = "enola holms";

// code here can use netflixFilm

function detective() {
  // code here can also use netflixFilm

In this example, the variable is defined outside the function. So it is in the global scope.

You can access global variables anywhere in JavaScript programs.

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Terry  Tremblay

Terry Tremblay


Now Learn JavaScript Programming Language With Microsoft

icrosoft has released a new series of video tutorials on YouTube for novice programmers to get a hands-on renowned programming language — JavaScript.

This isn’t the first attempt by Microsoft to come up with video tutorials by beginner programmers. The company also has a series of YouTube tutorials on Python for beginners.

For JavaScript, Microsoft has launched a series of 51 videos as ‘Beginner’s Series to JavaScript,’ for young programmers, developers and coders who are interested in building browser applications using JavaScript. These video tutorials will also help programmers and coders to use relevant software development kits (SDKs) and JavaScript frameworks, such as Google’s Angular.

“Learning a new framework or development environment is made even more difficult when you don’t know the programming language,” stated on the Microsoft Developer channel on YouTube. “Fortunately, we’re here to help! We’ve created this series of videos to focus on the core concepts of JavaScript.”

It further stated — while the tutorials don’t cover every aspect of JavaScript, it indeed will help in building a foundation from which one can continue to grow. By the end of this series, Microsoft claims that the novice programmers will be able to work through tutorials, quick starts, books, and other resources, continuing to grow on their own.

#news #javascript #javascript tutorial #javascript tutorials #microsoft tutorials on javascript

Jennie  Hane

Jennie Hane


Var vs Let vs Const: JavaScript complete course in 2021 in Hindi #6

Var vs Let vs Const: JavaScript complete course in 2021 in Hindi 🔥🔥🔥 #6
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In this video, We will have a look which keyword to use when creating a variable.

In this series, we will be learning the JavaScript programming language.
This course will be for absolute beginners as well as advanced users.
This is series has multiple parts which are depending on the previous video session.

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Javascript mini-projects:
NodeJs crash course: https://youtu.be/wdBCoRMMxto
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Flexbox: https://youtu.be/7WE_K7NDL0s

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wp codevo

wp codevo


JavaScript Shopping Cart - Javascript Project for Beginners


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JavaScript Var, Let, and Const - 8

To declare a variable in JavaScript either var, let or const is used.
We will distinguish between the three with the following features:

  • Block scope
  • Update and redeclaration
  • Hoisting
  • Undefined

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