ES6

 ES6 interview questions

DevSkiller’s expert team prepares ES6 interview questions to assist recruiters in adding junior, middle, and senior-level developers to their team. Our tests are structured to accurately screen each applicant’s abilities through a series of challenges and ES6 interview questions.

DevSkiller ES6 interview questions are powered by the RealLifeTesting methodology. This unique approach to developer testing replicates real-world scenarios and presents your applicants with challenges based on the kinds of problems they would usually face. DevSkiller makes finding the right candidate for your business simple, with our range of ES6 interview questions.

Recommended roles for ES6 interview questions 

  • web developer
  • ES6 developer
  • JavaScript developer
  • Junior ES6 developer
  • Middle ES6 developer
  • Senior ES6 developer

How DevSkiller ES6 interview questions work

DevSkiller ES6 interview questions are powered by the RealLifeTesting methodology.  RealLifeTesting allows you to analyze each applicant’s knowledge, skill set, and problem-solving ability, from within a controlled test environment. This means that recruiters can now be presented with a detailed assessment of how exactly a developer will perform in the role, while still in the initial screening stage. 

Key features

  • Test ES6 online coding ability and not just academic ability
  • Save time and money with remote testing 
  • The RealLifeTesting methodology offers a unique testing platform where candidates can opt to use their own IDE, clone to Git, run unit tests, and access Stack Overflow, Github, and Google for research.
  • Effective anti-plagiarism tools automatically scan content to assure test accuracy
  • E66 interview questions can be monitored in real-time
  • Automatically generated non-technical results 
  • Tests range from senior-level developers down to junior ES6 developer positions. 

Skills covered in our ES6 interview questions 

  • Hibernate
  • API
  • JavaScript
  • TypeScript
  • Accessibility
  • CSS
  • ES6
  • Functional
  • Functional Programming
  • Html
  • Angular
  • Angular Forms
  • Reducers
  • Redux
  • Snapshot Testing
  • NestJS
  • Node.JS
  • REST API
  • Promises
  • JS
  • React
  • jQuery
  • React Native
  • React-Redux
  • Redux-Form
  • Angular Forms API
  • Angular Reactive Forms
  • Angular Security
  • Angular Templates
  • Template-Driven Forms
  • Web development
  • ES7 
  • WCAG 2.0
  • PDO
  • SQL
  • AJAX
  • Dates
  • Promises
  • Routing
  • Ember
  • Ember 2.x
  • ExpressJS
  • QA
  • Mocha
  • Tooling
  • Vue.js
  • Rxjs
  • MEAN
  • DOM
  • Selenium
  • Test
  • API
  • CSS
  • GIT
  • HTML 5
  • Gulp
  • Gulp 4

What to look for in a JavaScript developer

ES6 (ECMAScript 6) is a general-purpose programming language and a major update to JavaScript, so you will be looking for a JavaScript developer. In your search, there are a few things you should look out for:

A good JavaScript developer will need to have good background knowledge of the JavaScript language itself in order to be able to write high-quality applications. It is also important to be up to date with changes and updates in the language, like ES6. 

New JavaScript frameworks are created all the time and it will be a bonus if your developer candidate can demonstrate a good knowledge of the most popular frameworks. It is perhaps more important to have a developer who can demonstrate knowledge of older JavaScript frameworks, however, as this demonstrates a deeper understanding of the language. 

For a higher-level position, commercial experience will be required, but for a mid-level or junior JavaScript developer, you can hope for a good portfolio containing some well-written code. 

Your developer will need to possess a different knowledge base depending on the role they are applying for. A front-end developer will require a different skill set to a full stack developer. In these cases, core knowledge of the language will be the same, but each developer should be able to demonstrate specific knowledge curtailing their field.

Want to get more from our ES6 interview questions? 

Maybe you want to customize our ES6 interview questions and tailor them specifically to suit your business? Well, you can. The DevSkiller online task wizard allows you to create your own ES6 interview questions, which are fully customizable. You can choose the language you wish to assess or allocate a time limit for each test. You can set the difficulty level and even set specific time limits on each question. Did we mention that you can even monitor your applicants’ progress? You can observe each test candidate in real-time, and track their progress during the test to see how they are doing. 

Want proof that our ES6 interview questions work?

Investing in something new can be a big step, no matter how good it seems. Don’t take our word on how effective DevSkiller testing is, hear what our clients have to say:   

Sabu Pappu – Talent Acquisition Lead at Veriday

“We have reduced the tech rejection which is great. We’ve seen a 25% improvement at this point after the implementation of DevSkiller. The platform really helps us to assess the programming skills of candidates and provide a logical approach to the problem-solving skills of IT professionals. DevSkiller saved us a lot of time while we had a ramp up and helped us to invite good quality candidates who have performed well in the test, which eventually improved the selection criteria.”

Magdalena Rogóż – Deputy Marketing Manager at Kodilla

“Using DevSkiller to grade tests is 2 times more cost-efficient while giving our students a much better test and preparing them for future recruitment tests.”

Michael Gerwig – Engineering manager at Ada Health

 

“DevSkiller helped us to save precious on-site time for applicants that are already likely to be a fit. We’re saving 3 hours per candidate – that was the time we spent with applicants on a technical task before.”

Frequently asked questions

What is RealLifeTesting?

At its core, RealLifeTestingstems from the belief that the best way to evaluate a developer’s skills is by presenting them with a work test that mirrors the actual development work they’ll do. RealLifeTesting simulates the kinds of real-world scenarios your applicants would be likely to encounter and then assesses them based on their responses to the challenges they face.

The successful candidate should demonstrate a clear understanding and knowledge of ES6, display the ability to utilize resources like Stack Overflow, and possess critical thinking to determine the quickest and most efficient solution to problems they encounter. 

How are ES6 interview questions evaluated?

Evaluation with DevSkiller happens automatically, saving on countless hours of in-house assessment and evaluation. Once the candidate has completed a test, the DevSkiller platform gets to work automatically on the solutions. The results are compiled into a report that is made clear and easy to understand so that non-technical recruiters can easily follow. Candidates are assessed on whether the solution they came up with for each problem would run (an essential factor in all software development), the number of errors in the code, the quality of the code, and how it works in edge cases. DevSkiller can also ensure test accuracy by implementing a range of anti-plagiarism tools.  

How long does it take to set up DevSkiller?

Devskiller takes no time at all to set up. Once your account is up and running you can start sending out test invites straight away.  Our library is stacked with predefined online tests, including ES6 interview questions, meaning you can start screening candidates with no extra work required.

Do I need to be a programmer to use DevSkiller?

No. Part of the concept behind DevSkiller testing is that you don’t have to be a developer, to hire a developer. We have made Devskiller as simple and as automated as it can possibly be. Our ready-to-use tests are prepared by IT experts to allow non-technical users to verify the technical skills of even the most advanced candidate. If you have a technical person on-site, you can prepare your own test, or simply choose one from our extensive back-catalog. 

JavaScript
SENIOR
Tested skills
Duration
57 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript, HTML, CSS, Accessibility

Programming task - Level: Hard

JavaScript | Functional memoization - Write the two versions of generic memoization mechanism.

JavaScript
SENIOR
Tested skills
Duration
46 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript

Programming task - Level: Hard

JavaScript | Functional memoization - Write the two versions of generic memoization mechanism.

React Native
SENIOR
Tested skills
Duration
108 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript

Programming task - Level: Hard

React Native | Movie Store - Implement an application which allows users to buy all the movies they can imagine.

React Native
MIDDLE
Tested skills
Duration
101 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript

Programming task - Level: Medium

React Native | HR Companion App - Implement an application to help HR department with maintaining the list of job candidates to be evaluated.

JavaScript
JUNIOR
Tested skills
Duration
56 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript

Programming task - Level: Easy

JavaScript | Orders Analyzer | Find a total ordered quantity of a product for every weekday - Implement OrdersAnalyzer#averageDailySales method that will return a map with a name of a day of the week as a key and a sum of ordered quantity for a given product id as a value.

Java
JUNIOR
Tested skills
Duration
68 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of Java

Programming task - Level: Easy

Java | Find duplicates - Implement findDuplicates method that returns a new list containing duplicates which occured N-times.

Choice questions

assessing knowledge of ES6, JavaScript, Typescript

Programming task - Level: Easy

JavaScript | Node.JS | Websocket server - Complete the server.js file in order to finish the WebSocket server.

PHP
MIDDLE
Tested skills
Duration
60 minutes max.
Evaluation
Automatic
Test overview

Code gaps

assessing knowledge of SQL

Choice questions

assessing knowledge of ES6, JavaScript, CSS, HTML, WCAG 2.0, Web Accessibility

Programming task - Level: Medium

PHP | Categories Repository - Implement PDO queries that will return valid results about movies to users.

PHP
SENIOR
Tested skills
Duration
88 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, ES6, JavaScript, AJAX, Web development

Programming task - Level: Hard

PHP | XML-CSV Converter - Implement filtering and data transformation methods to pass all the tests.

HTML
SENIOR
Tested skills
Duration
133 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of AJAX, JavaScript, Web development, ES6, Typescript, CSS, HTML

Programming task - Level: Hard

JavaScript | Social Media Queries | Find friends by name - Implement a function to find user's friends by their name.

Programming task - Level: Hard

CSS/HTML - Flexbox navigation bar - Complete CSS definition and use Flexbox to layout components.

JavaScript
MIDDLE
Tested skills
Duration
54 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript, Web development, Tooling, Web

Programming task - Level: Medium

JavaScript | Social Media Queries | Find potential likes - Implement a function to find books which are considered as potential likes.