03 - var - let - const / hoisting ما هي الفروقات الجافا سكريبت | Essential Javascript for React

Опубликовано: 31 Август 2022
на канале: Mohammed Elzanaty

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in this video, I will explain Use let and const for Block-Scoped Variables

ES6 introduces two new keywords to create variables - let and const. Both of them are block-scoped, as opposed to var which is scoped to the surrounding function. The more limited scope of let and const makes them more predictable. In this lesson, you'll learn how to let and const work, the difference between function and block scope, and how const is only a sort of constant.

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▬ 🔗 Chapters ▬▬▬▬▬▬▬▬▬▬

⌛️ 00:00:00 function vs block scope
⌛️ 00:02:46 var - let inside a closure
⌛️ 00:04:30 const
⌛️ 00:07:14 outro

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