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-n...
🔗 function scope - https://officedev.github.io/browser-n...
🔗 block scope - https://officedev.github.io/browser-n...
🔗 W3Schools - JS Let: https://www.w3schools.com/js/js_let.asp
🔗 W3Schools - JS Const: https://www.w3schools.com/js/js_const...
📚 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
In questa pagina del sito puoi guardare il video online JavaScript Variable Scopes Demystified - var, let, and const della durata di ore minuti seconda in buona qualità , che l'utente ha caricato Andrew Connell 19 gennaio 2023, condividi il link con amici e conoscenti, su youtube questo video è già stato visto 425 volte e gli è piaciuto 14 spettatori. Buona visione!
