Questions d'entretien pour Frontend Developer

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On a demandé à un Frontend Developer...27 août 2020

Easy quant and java questions

7 réponses

How long do they take to announce results of quiz round?

As soon as you submit the quiz u will get the mail... May be if you get shortlisted otherwise i don't know Moins

Ty for your response. Do they confirm if I'm selected or not selected by mail?

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1. about 2. javascript typescript babel es5 es6 3. test driven development, unit-testing, continuous integration 4. react-redux, modern JS frameworks, JS closures 5. function sum(){/*add code here*/};console.log (sum(3)(5)(7)(3)()); // 18

4 réponses

function sum(x) { return function(y) { return function(z){ return function(w){ return function(){ return x + y + z + w; } } } } } Moins

var sum = (n) => { let result = n; const fn = (n) => { if (n == null) { return result; } result += n; return fn; } return fn; } Moins

const sum = (n, res = 0) => ( n == null ? res : (x) => sum(x, res + n) ); Moins

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Experiences in angular and bootstrap

3 réponses


Only that's been asked ;) you even did not read the resume.

Thanks for highly interesting in my skills

Quovantis Technologies

Q What if I use var inside Contstructor function? function Person(firstName, lastName, age){this.firstName=firstName;this.lastName = lastName; var a = 5;}; What will console.log(a); print?

2 réponses

It will give compile time error, as you are using a variable outside of its scope. Moins

I was not able to answer this


The interview followed a standard format, where an input was given, and certain outputs expected. The inputs were presented in a file on the disk. As a javascript engineer, this was awkward, as javascript is rarely used to read/write directly to the hard drive. Due to NDA, I cannot disclose the specifics of the question itself.

2 réponses

I explained that although the challenge ideally required writing to/from disk for a "perfect solution", Javascript typically gets it's data input via HTTP, and displays its output via the browser, so that was how I would proceed with my solution. Moins



Write a polyfill (fallback function) for filter method for arrays

2 réponses

Array.prototype.myFilter = function(callback){ var filteredArray = []; for(var i=0;i{ return el % 2 === 0 }) console.log(filteredArray) Moins

While adding answer to this question it was added incompletely. Hence adding here again Array.prototype.filter = null; if (!Array.prototype.filter) { Array.prototype.filter = function (callback) { var filtered = []; for (var i = 0; i el % 2 === 0); console.log(filteredArr) Moins


Are you available to travel to and from the airport regularly (on a weekly basis)?

2 réponses

I was not able to meet this requirement because of my current location.



Build a custom UI and debug.

2 réponses

There's quite an extended back and forth in actual interviews for questions like this, so nothing quite like real practice. The Prepfully Atlassian Frontend Software Engineer experts have actually worked in this role, so they're able to do an honest-to-God accurate mock, which really puts you through the paces. Moins

Do projects with a framework for your choice. Understand how to use the debugger and browser tools. Moins

EPAM Systems

In JS in an AND condition if the first part is false, would the second get evaluated?

2 réponses


No for AND both conditions should be true.


codility test with 3 tasks for 2 hours. Tasks are to implement small angular application, small jquery application and nodejs application. after that the 'trial day'

2 réponses

I was able to complete the codility test for 1 hour.

I applied for different position, but the outcome is the same. Very unprofessional communication, they state that they are start-up and many parts are not perfect, but they were founded in 2013. Acrually, I am thinking, how they still work? They have only bad reviews. Moins

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