What’s your favorite JS interview question?

What’s your favorite interview question to ask a candidate?

Comments

[vupadhayayx86]

setTimeout(()=>console.log("Hello4"),1004)
setTimeout(()=>console.log("Hello3"),1003)
setTimeout(()=>console.log("Hello2"),1002)
setTimeout(()=>console.log("Hello1"),1001)
setTimeout(()=>console.log("Hello0"),1000)

or
for(let i=0;i<5;i++){
setTimeout(()=>console.log("Hello" +i),1000*1)
}

Both code will produce same result!

[Guin White]

I'm new to JS, and I'm pretty clear on why this logs 10 to the console, but I'm not understanding why it logs it 10 times. Can someone please explain this to a noob?

PS - apologies for reactivating an older thread, but this code actually came up in another context, and when I searched I found this discussion. Thanks for understanding.

[Riccardo Bernardini]

I am not a JS expert, but... TAB == 0 ?!? 😲

[@nobody]

What's difference between this

kung.prototype.fu = function() { juli.do_the_thing(); 
}

and this

class kung {

  fu() { 
   do_the_thing(juli);
    }
 }

[John Paul Ada]

Create a non-brute force autocomplete function in JavaScript. 😎

[Pawail A. Qaisar]

I know this might sound a bit ridiculous, but...

'When was the first time you touched a computer?'

'And when was the first time a computer touched you?'

No pun intended! :)

[Alex Lohr]

What's your favorite addition to ECMAscript?

[Tyson Williams]

Any that I know and get right. 😅

[Sergey Ivanov]

Because answer on this question will discover what answerer know about:

• Scopes
• Closures
• How event loop works in the browser