JavaScript Variable Scopes Demystified - var, let, and const

Traditionally every JavaScript developer used `var` to declare variables. In ES6, they added the `let` and `const` keywords to declare variables. Each of these keywords provides a different "scope" for the variable they're declaring and that can make a big difference in your code in both positive and negative ways depending on your expectations. In this episode of Browser Native, we'll dive deep into how to use these keywords, what they're good for, and what are some of the pros and cons.
🔗 Links
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🔗 Browser Native series - https://vtns.io/browser-native
🔗 global scope - https://officedev.github.io/browser-native/listing/?sample=variable-scopes
🔗 function scope - https://officedev.github.io/browser-native/listing/?sample=variable-scopes2
🔗 block scope - https://officedev.github.io/browser-native/listing/?sample=variable-scopes3
🔗 W3Schools - JS Let: https://www.w3schools.com/js/js_let.asp
🔗 W3Schools - JS Const: https://www.w3schools.com/js/js_const.asp
📚 Chapters
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00:00 : Introduction
00:11 : Var, Let, & Const - differences
05:34 : Global variable scope
06:37 : Function variable scope
08:15 : Block variable scope

#BrowserNative #JavaScript

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