Скачать или смотреть Difference between var, let and const keywords in JavaScript.

Difference between var, let and const keywords in JavaScript.


Welcome, what is var, let and const in javascript in English.
Differences between var vs let vs const in javascript .
so, in ECMAScript 2015 let keyword.
Let in JavaScript in English.
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.

Alongside HTML and CSS, JavaScript is one of the best and most demanded technologies of the World Wide Web. JavaScript enables interactive web pages and is a crucial part of web applications. The vast majority of sites use it, and major web browsers have a dedicated JavaScript engine in order to execute it.



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