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
En esta página del sitio puede ver el video en línea JavaScript Variable Scopes Demystified - var, let, and const de Duración hora minuto segunda en buena calidad , que subió el usuario Andrew Connell 19 enero 2023, comparta el enlace con amigos y conocidos, en youtube este video ya ha sido visto 425 veces y le gustó 14 a los espectadores. Disfruta viendo!
