All Pro Web Designs > > Learning Tutorials > Programming Languages > JavaScript > Hoisting in JavaScript and function scope issues with keyword var
Hoisting in JavaScript and function scope issues with keyword var
- January 31, 2024
- Posted by: MainInstructor
- Category: JavaScript
Video Title: Hoisting in JavaScript and function scope issues with keyword var
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Effective Vedio for learning ✅
Your videos are so informative keep uploading new videos
I like your style of explaining the issues – respect ! Thank you !!!
I think 'let' do hoisting but it doesn't assign to default value undefined. it assign where the developer declared. I might be wrong though
I really enjoyed the video and understood all the concepts related hoisting and issues of constants
good
clear example. thanks
Interviewer : do u watch techsith
Me: yes
Interviewer : you are hired
Great explanation. Thank you!
Very nice video.
Great Video.
Well explain so easy to understand, thank you so much
Can you please explain the second part where you assign 2 to var y and then if you comment out the other assignment to the same variable the console.log would display 2.
felt happy after seeing the video, doubt cleared
great explanation, thank you.
so simple and informative ❤👍🏻 thank you
Thank you. This video has been really helpful. I learnt new things……
That was clean sir. Thank you
Looking for more videos on cloud
Very clear and intelligent explanation! Thank you! 💡 👍🏻
It was very helpful sir ……. explanation was clear and perfect….
whenever create any variable with var keyword it will be added to window (dom) object directly so it will be available in that particular context var is like global variable. var v; console.log(window.v);–>u will get undefined not an error
Thanks for your simple explanation, this really means you understand what you're talking about, keep going (Y).
Good one, thanks
This helped me understand hoisting thanks alot 🙂
Very helpful tutorial….
I understand hoisting. But I want to know why hoisting? Could you please help to understand.
Another thing with var and let is:
var x = x; gives you a variable x with the value of undefined
but let x = x gives you Uncaught ReferenceError: Cannot access 'x' before initialization
at whateveryourfileis.js:whateverthelinenumberis:whateverthecolumnnumberis