What is Scope in JavaScript?

In today's video I'll be explaining the 3 different types of scopes in JavaScript: global scope, function scope and block scope. If you're new to JavaScript or don't understand scopes, it's super important to make sure you're across this concept.

Chapters:
0:00 Intro
0:44 Global Scope
3:46 Function Scope
5:47 Block Scope
9:07 Outro

For your reference, check this out:

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#dcode #javascript

[kevinvz]

Never realized var escaped block scopes, awesome video as always

[bahramiwd]

Your video really helped me because I was confused with scopes. Thanks

[karimfawzy]

Now i could understand that tricks that had me confused since 2 year, thank u sir lam really happy to get this wonderful channel ❤

[agentprotik]

you have earned my subscription. keep goin mate <3

[CiscoZero]

Amazing lesson! I'm so far ahead learning syntax and methods, but I had no idea about scopes. Why hadn't I learned this very basic concept in coding?

[TomDoesTech]

Nice to hear a fellow Aussie making JS videos :)

[thiagomeneses]

Thank you for your video! However I still have some questions, in the start of the video you mentioned that variables assigned with let and const can still be global variables, however they cannot be found in the window object, but when trying this out in my computer this did not happen, even variables defined with these keywords were shown in my object. Also, I was able to use them like this: window.varName. Both when using let and also const

[emmanuelsaraiva]

Amazing, man! As a beginner, you've made things clearer for me to understand the concepts... Thank you!

[ghaziali]

Bro what's your vs code color theme I like the colors of your code.

[thefsquad]

But why just not always use var ? so you can access it from everywhere?