Frontend Interview Preparation | Guess the output Part Finale | Javascript Interview Preparation

This video is a last part in our series guessing the output that we have started to prepare for frontend interviews.

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[subhramukherjee]

Great Questions....tricky but Interesting...Thank you

[rishabhkunwar]

1) output will be ['coding', 'dancing', 'banking'] because or first function call we are passing empty array so default parameter is not considered for second function call we are not passing any second argument so default parameter will take person object element hobbies array so dancing will be pushed in that array, and for third function call we are passing hobbies array from person object and hence banking will also be added in same array because object is referring to same memory location

2) I think basic difference between for in and for of is that
For in loop iterates over key of objects and for of interates over value
So here evey element of myLifeSummedIp will be displayed but for for in loop it will iterates over keys which is here is index on every element and for of will iterates over values of array

[spm.o]

1. in hobbies of person object there will be coding, dancing, baking
1st function call will override the default param of addHobby function that's why it will not be pushed into the array


2.for in will give indexes and used mainly used while iterating over objects. for of will give elements mostly used to access array elements

[bskupdates]

For 2nd give away question for in is used to retIn the above we use for - in

[shubhamjapkar]

in js dsa is hard, because we do not get any build in data structure there, so is it good that we practice dsa questions in c++ as web developer.

[umeshshelke]

Where l i can get this All questions list ?

[bskupdates]

please post important tips for interview questions

[amiteshsingh]

Hi Ma'am
can please explain be the below code or any refrence for that
(function() {
return [ (() => this.x).bind({ x: 'inner' })(), (() => this.x)() ]

}).call({ x: 'outer' });