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Online JavaScript Test for Identifying and Hiring Top Talent

The online JavaScript test evaluates a candidate's front-end development skills and programming knowledge in JavaScript language. This scripting language can help assess candidates' ability to code for web and application development.

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Inside This JavaScript Assessment

The JavaScript online test assesses a candidate's skills in adding interactive behavior to webpages, creating webpages and apps, developing server applications, and building web servers.  

The test is holistically designed to test applicants' knowledge and applied skills. This 60-minute test includes 18 MCQs (Multiple Choice Questions) and two coding problems to be solved on the Mercer | Mettl’s front-end simulator for testing a candidate's front-end development skills and fundamental concepts of JavaScript.

The JavaScript skills test will help you screen candidates for the following roles:  

  • JavaScript Developer  
  • Software Developer (JavaScript)  
  • Front-End Developer (JavaScript)  

Overview

Someone's lack of proficiency in JavaScript will undoubtedly leave them bereft of the most intriguing features of this remarkable programming language. JavaScript, abbreviated as JS, is an essential scripting language used in front-end development to create interactive, dynamic web content like browsers and applications.

JS is one of the web's core technologies. It enables the creation of beautiful, interactive user interfaces we observe and experience online. What is even more intriguing is that some of the most popular frameworks are based on JS, namely Ember.js, React, Vue.js, AngularJS, and Node.js. A solid foundation in JavaScript programming is crucial for junior programmers as it will help them to jump-start their careers and align themselves for further professional growth.

When hiring JavaScript developers, companies usually receive a plethora of applications for these roles, specifically entry-level jobs, which receive the maximum number of applicants. But there is only so much that resumes can uncover about any candidate, which makes it challenging for employers to gauge who has the required skills in a large applicant pool. The JavaScript online test helps tech recruiters and employers to assess the candidate's skills in implementing the front-end logic that decides how visual elements of a web application behave. Expertly formulated, these coding tests are the brainchild of seasoned industry experts.

The JavaScript online coding test provides a way for employers to pit potential aspirants against one another from a technical perspective to determine which candidate is best aligned with the role requirements. Now that will certainly come in handy for evaluations at the junior level but is no less relevant for hiring for senior-level roles. Hence, considering that so much is at stake from an organizational standpoint, making the right hiring decisions is critical.

In addition to the evident benefits of assessing skill level, some more convincing reasons vouch for the indispensability of using JavaScript coding tests for making essential talent decisions.

Firstly, these tests can help root out or reduce unconscious bias, which often creeps into decision-making. It poses a grave impact on the authenticity of the hiring process. Using the JavaScript assessment, an employer can get a fair, accurate and objective evaluation of competencies, enabling them to select the most suitable candidates for the role without any conscious or implicit bias.

A successful recruitment drive is one in which everyone gets a fair shot, and that's why JavaScript skills tests can enable companies to provide an opportunity for candidates to demonstrate their technical skills. By administering these tests early in the process, recruiting managers can save untold person-hours they would otherwise spend interviewing each applicant.

That leads us to another reason JavaScript assessment tests have recently gained steady ground. These tests add efficiency and agility to the evaluation process, which benefits both the applicant and the employer. By eliminating redundant technical evaluation processes, companies can make critical decisions faster with accuracy, thus allowing the hiring managers/senior programmers greater leeway in focusing on other time-critical tasks, too.

Lastly, another advantage of using JavaScript technical tests is that it helps organizations chart a development plan for future leaders. By understanding the strengths and areas of improvement, considerate employers can leverage the results of such assessments to prepare a development plan for prospective hires.

Use the online JavaScript test to make well-informed, data-driven hiring decisions   

The JavaScript skills assessment is a crucial tool in the recruiter's armory to find highly skilled JavaScript developers, make data-backed comparisons between many candidates, and ensure that the qualified individuals have skills aligned with the business goals. The assessment incorporates different technical questions for gauging a developer's talent in JS, its critical applications and front-end development. The tests aim to determine candidates' knowledge of hands-on java programming, front-end development skills, and JavaScript and Java fundamentals.

SKILL LIBRARY

This JavaScript Online Test is a part of following Skills Libraries

JavaScript Developer Competency Framework

Get a detailed look inside the test

JavaScript Developer Competencies Under Scanner

Javascript Development

Competencies:

Hands-on Java Programming

The JavaScript technical test helps assess a candidate's coding skills on a powerful coding simulator by giving real-world problems and evaluating their hands-on experience and capability to code in the desired language.

Front End Development Skills

The test includes practical hands-on coding questions for assessing a candidate's front-end web development skills in JavaScript basics.

Java Basics

The JavaScript online test aims to understand a candidate's proficiency in the given skills - Strings and Methods, Flow of Control, Classes Objects and Methods, OOPS Concepts, Interfaces and Inheritance in Core Java and Java - OOPS.

JavaScript

This JavaScript skills assessment gauges the candidate's strengths in these skills: Arrays, Scopes and Namespaces, Parsing, Events and Event Handlers, Object Usage and Properties application, Forms along with HTML and Links in JavaScript.

Customize This JavaScript Coding Test

Flexible customization options to suit your needs

Set difficulty level of test

Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.

Combine multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.

Add your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.

Request a tailor-made test

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

The Mercer | Mettl JavaScript Developer Test Advantage

The Mercer | Mettl Edge

  • Industry Leading 24/7 Support
  • State of the art examination platform
  • Inbuilt Cutting Edge AI-Driven Proctoring
  • Simulators designed by developers
  • Tests Tailored to Your business needs
  • Support for 20+ Languages in 80+ Countries Globally

JavaScript Coding Test Can Be Setup in 4 Steps

Step 1: Add test

Add this test your tests

Step 2: Share link

Share test link from your tests

Step 3: Test View

Candidate take the test

Step 4: Insightful Report

You get their tests report

Our Customers Vouch for Our Quality and Service

Sonal Kapur Sinha
Saranya Mukherjee
Anson Mathews
Dr. Fuad Said
Dinesh Jagnani
Shirish Awasthi
Mayank Jain

The validity of Mercer | Mettl''s assessments is exceptionally robust. It enabled us to funnel people who were precisely the type we needed. Mercer | Mettl helped us to accurately identify high-potential candidates within our internal team.

...read more

Sonal Kapur Sinha

Sonal Kapur Sinha

Head HR, Modern Foods

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Mercer | Mettl''s platform and the science behind it are highly intuitive and systematic for the test-takers. Customized assessments, how data is aggregated, and how you can download insightful reports directly from the system - stood out for us from

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Saranya Mukherjee

Saranya Mukherjee

Lead, Early Career Development Campus & Employer Branding

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The ease of navigating the platform, the simplicity of the assessment reports, the ability to adapt to the COVID-19 situation -all of these helped us reduce bad hires, ensure successful probations and onboard individuals with the right set of compete

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Anson Mathews

Anson Mathews

Organization Development Manager, Averda

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With Mercer | Mettl, we have probably experienced the best customer service from any tech company. It has two exceptional things - its software and the more important product, its staff, which is truly an asset.

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Dr. Fuad Said

Dr. Fuad Said

MD, Internal Medicine, Jordan Hospital

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The quality of the recruitment increased, because previously we were not having any assessment. The quality of assessments and the quality of reports are very well catering to our requirements. The reports are very expansive, and it gives more light

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Dinesh Jagnani

Dinesh Jagnani

Deputy Manager, Talent Management

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Mercer | Mettl''s solutions brought various unprecedented insights into our technical hiring process. It was complemented by reduced friction and enhanced ease and agility. With one of the most advanced and extensive lists of questions and world-cla

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Shirish Awasthi

Shirish Awasthi

Talent Acquisition, Coforge Ltd.

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We had an extremely pleasant experience working with Mercer | Mettl. Thanks to Mercer | Mettl we were able to ensure contuinity in examination. I dont think we could have offered our exams any other way.

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Mayank Jain

Mayank Jain

Manager, Vidyamandir Classes

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Frequently Asked Questions (FAQs)

A good JavaScript developer should be well versed with the basics of JavaScript and have expertise in manipulating HTML Document Object Model (DOM) to make web pages dynamic. Mercer|Mettl's JavaScript developer test is designed to determine the skills that a beginner to intermediate level JS developer would be expected to possess.

Some of the salient features are listed below:   

  •  Light Weight  
  •  Functional  
  •  Dynamic Typing  
  •  OOP support  
  •  Interpreted  
  •  Platform independence  
  •  Prototype-oriented  
  •  Async operations  
  •  Client-side validation  
  •  Effective browser control

The JavaScript online test is tailored for recruitment. We can do benchmarking for custom sample sets as well. Please write to us about your request; we will gladly assist you.  

We have previously customized JavaScript online test reports based on the client’s requirements. So please write to us with your request, and we will be glad to provide you with a solution.

Listed below are some usual questions that interviewers often ask candidates:  

  • Is JavaScript only for Web development?  

JS is used to create appealing websites and to develop browser-based games and mobile apps for different operating systems.  

  • What is the test method in JavaScript?  

The test () method checks for approximate string matching, and if there is a match, the method returns true; otherwise, it returns false.  

  • What is bubbling in JavaScript?  

In the event bubbling process, the element triggers the event and bubbles up to the contained elements in the hierarchy.  

  •  Is JavaScript case sensitive?  

Yes, JavaScript is a case-sensitive language.  

  •  What does Nan mean in JavaScript?  

The Nan property is referred to as the "Not-a-Number" value.  

  •  What is null JavaScript?  

The 'null' value refers to the intended omission of any object value.  

  • Where is the right place to insert JavaScript?  

In the <head> or in the <body> section of an HTML page, or in both.  

  •  Is JavaScript a programming language?  

Yes, JavaScript is an interpreted programming language.  

  •  Inside which HTML element do we put JavaScript?  

The <script> tag is used for the same.  

  •  What is the use of JavaScript?  

JavaScript is a full-fledged dynamic programming language that can help provide dynamic interactivity on websites.  

  •  Is JavaScript front-end or back-end?  

It is both front-end and back-end because it is used across the web development stack.  

  •  What type of scripting language is JavaScript?  

JavaScript® is an object-oriented, lightweight, interpreted language with first-class functions.  

  •  What is '$' in JavaScript?  

The dollar sign ($) is called a JavaScript identifier.  

Here is a brief low-down on the proven tips that help in the improvement of JavaScript skills:   

  • Keep your conceptual knowledge and basics up to date.  
  • Keep practicing as much as possible.  
  • Stay abreast of everything new in the JavaScript domain.  
  • Always be mindful of the basic programming rules.  
  • Always prefer applying an object-oriented approach over the conventional method.  
  • Always ensure that you test your code as soon as you complete it to provide a bug-free, error-free stage of development.  
  • Please make the most of Error Objects as it helps display the error message and helps you eliminate the likelihood of errors while writing the codes.  
  • Keep working on different projects and explore the new aspects of programming for skills enhancement.

A strong understanding of fundamentals is required primarily. For someone lacking the knowledge of basic principles, chances are high that they may not be able to answer basic questions. On the other hand, those new to JavaScript can start their learning journey at w3schools and become proficient in web 2.0, CSS framework, JavaScript function, etc.  

 Knowledge of jQuery basics is also essential. JSFiddle, an online IDE service, helps to practice online and share the created work. Aspirants should also hone their skills on Model–View–View Model (MVVM) frameworks, such as Ext JS, AngularJS, and JavaScript libraries (Lodash, Moment.js). Questions on Node.js are also the interviewer's favorite these days.  

 Many interviewers look forward to understanding if the candidate is confident and knowledgeable enough to undertake complex projects. That is why aspirants should work on their fundamentals and run down some notable example projects to improve their preparation.

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