Explain this:
var Bob = {
name: "Bob",
name_fn: function(){
return this.name;
}
}

console.log(Bob.name_fn()) //"Bob"
var fn = Bob.name_fn
console.log(fn()) //undefined

Question

Explain this: 
var Bob = {
     name: "Bob",
     name_fn: function(){
          return this.name;
     }
}

console.log(Bob.name_fn()) //"Bob"
var fn = Bob.name_fn
console.log(fn()) //undefined

Anonymoys · Accepted Answer

when you call fn() its scope is in global. The function call should be scoped properly to work.  You should use call or apply to make it work.

Sigiloso · Answer

It's essential to demonstrate that you can really go deep... there are plenty of followup questions and (sometimes tangential) angles to explore.


There's a lot of  Software Engineer III experts who've worked at PayPal, who provide this sort of practice through mock interviews. There's a whole list of them curated on Prepfully.


prepfully.com/practice-interviews

Sigiloso · Answer

fn is "Bob" and not a method.

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