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We will build a customized, job-based pre-employment skills test to suit your job description.

Use our JavaScript skill test to screen and hire job-fit candidates for roles such as:

• Angular Developer
• Web Developer
• Angular JS Front-End Developer
• Senior/ Junior JavaScript Developer
• Full Stack Developer (0 to 5 yrs. of experience)
• Backbone JS Developer
• Ember JS Developer
• Express JS Developer
• Jr./ Sr. Front-End JavaScript Developer
• JQuery Developer
• JSON Developer
• UI Developer
• Node JS Developer
• React Native Developer
• React JS Developer
• Ember JS Developer
• EXTJS Developer
• Knockout JS Developer
• Marionette JS Developer

• UI Developer – Knockout JS
• MongoDB Developer
• Spring Batch Developer
• UnderScore JS Developer
• Dojo Developer
• GWT Developer
• Vue JS Developer
• D3 JS Developer/ Expert
• Data Visualization Expert
• Maven Expert
• MongoDB Expert
• Angular JS Testing Expert – Karma
• Web Designer
• GWT Designer
• Node JS Engineer
• Front End Engineer
• Automation Testing Engineer - Jasmine
• Karma QA Engineer
• JavaScript Programmer

Our JavaScript skills assessment questions measure the following JavaScript skills:

JavaScript Skills: Functions, Modules & Classes, Data types and Expressions, DOM (Document Object Model), Event loops, Classes, and Member Functions, String Interpolation, Inheritance, and more.

• Angular Skills: Angular JS - Controllers, Services, Expressions, Interpolation, Angular 2 Directives, Angular 2 Events, Angular 2 Components, Angular 4 - Angular Animation, Angular Universal, Data Binding, Routes, Angular 5, Angular 6, and more.

• React JS Skills: Mounting Method, Render Function, Component Optimize, Handling Events, React JS Workflows like Flux, Redux, Data Structure Libraries, and more.

• React Native Skills: JavaScript XML JSX, Styling, Interactivity, React Native App Registry, Components and Props, and more.

• JQuery Skills: JQuery Library, Modules and Classes in JavaScript, Data Types and Expressions in JavaScript, and more.

• D3 JS Skills: D3 JS Objects, D3 JS Scale Functions, Data Visualization Method, Arrays in D3 JS, and more.

• JSON Skills: JSON Array, JavaScript Objects, XML Code Snippets, and more.

• Node JS Skills: JavaScript Engine, Packages, Directories, Sessions, and more.

• Ant Skills: Ant Operation Tags, Running Ant by Command Line, Ant Properties, Working with Targets in Ant, Folder and File Handling in Ant, and more.

• Backbone Skills: Backbone JS Segments, Backbone JS Functions, TODO Model, Backbone JS Scripts, and more.

• Dojo Skills: Dojo Module, Arrays, Query, Widgets, and more.

Ember JS Skills: Ember JS Configuration, Creating Applications with Ember JS, Developing Actions with Ember JS, and more.

Express JS Skills: Server and Ports Template Engines, Express JS Basics, Building APIs and Routing, Rendering Template, and more.

• EXT JS Skills: EXTJS Grid, Grid Feature, Ext Viewport, DOM Elements, and more.

• Grunt Skills: Task Configuration, Custom Filter Function, Creating Tasks, Grunt CLI, Task Dependency, and more.

• Gulp Skills: Sourcing Files, Compatibility, Pipelining, and more.

• GWT Skills: Overlay Types, Delayed Logic, History Mechanism, Module Descriptor, and more.

• Jasmine Testing Skills: Filters, Jasmine Spy, Functional Testing, File Loading, and more.

• Karma Testing Skills: Working with Configuration Files, Installing Frameworks using NPM, Excluding Files from Tests in Karma, and more.

• Knockout Skills: Data Binding Syntax, creating a View Model, View Models with Parameters, and more.

• Marionette JS Skills: Collection View, Applications, Events, Functions, and more.

• Apache Maven Skills: Default Archetype, Dependencies, Directory Base Structure, Archetypes, and more.

• Data Analysis Skills: Data Layers, Statistical Layers, Initializers, and more.

• MongoDB Skill: Query Sample, MongoDB Facts, Denormalized Data Models, and more.

• NPM Skills: Folder Structures, JSON, Database, Database Objects, and more.

• Underscore JS Skills: Map, SortBy Function, Functions, Grouping List, and more.

• Vue JS Skills: Vue.js Directives, Lifecycle, Components, Event Modifiers, and more.

Two important use cases for JavaScript skills test

#1 Identifying job-fit candidates based on job roles

iMocha allows you to create customized JavaScript proficiency tests for any given job role. Using this capability, you can choose questions from various skill types, including functional, technical, and soft skills. For example, with our customized JavaScript developers' skills test, you can evaluate candidates' knowledge of React JS, Jasmine Testing, Analytical Thinking, Data Analysis, and more to hire the best individuals for the job.

#2 Skill-gap analysis of your employees

Using this feature, you can measure employees' skill competency through JavaScript training assessments. It determines the current skill level and identifies the areas for growth. It also measures the knowledge and impact of the training and traces individual employees' gained knowledge. For example, you can use our JavaScript training assessments to identify a consultant's knowledge about Express JS, NPM, Communication, JavaScript, and other skills and perform a skill gap analysis.

Test Creation Process

We offer various types of JavaScript technical tests to help you evaluate candidates' specific skills. These questions are designed by Subject Matter Experts (SMEs) based on their knowledge and expertise. For example, only JavaScript specialists will develop questions about GWT, JQuery, or Karma Testing based on easy, medium, and hard difficulty levels.

You can - choose which questions to include in the JavaScript skills assessment or ask us to create personalized assessments according to your requirements.


What is JavaScript?
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JavaScript is a type of scripting language used to create and control dynamic website content. It means anything that moves, refreshes, or changes on your screen without requiring you to manually reload a web page. Mostly, this language can be written right in a web page’s HTML and run automatically as the page loads. JavaScript is also called as a lightweight language. JavaScript programming allow client-side script to interact with user and create dynamic pages.

How is the JavaScript skills assessment customized?
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Our SMEs can design individualized JavaScript technical tests based on your job role requirements. These assessments are divided into primary and secondary skills, such as a Single view of Node JS, Mango DB, Knockout, Problem Solving, EXT JS, Data Analysis, and more. Additionally, SMEs can create customized questions according to applicants' experience and difficulty level.

What are the certifications required for this role?
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Some popular Certifications for JavaScript-related job roles are as follows:

• Full Stack JavaScript Developer Certification

• w3schools JavaScript Certification

• Certified JavaScript Certification

• Deep JavaScript v3 Foundations Certification

• CIW JavaScript Specialist Certification

What are the most common interview questions for this role?
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Some of the common JavaScript interview questions asked for this role are:

• Define a named function in JavaScript

• Define anonymous function

• Define closure.

• What is the difference between JavaScript and JScript?

• What is BOM?

• What are the different data types present in JavaScript?

• Is JavaScript a statically typed or a dynamically typed language?

• Is it possible to break JavaScript Code into several lines?

What are the roles and responsibilities of JavaScript Developers?
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JavaScript Developers are required to perform the following tasks and responsibilities:

• Evaluate and analyze debug web applications using Node.js, JavaScript, and CSS

• Manage automated test scripts

• Create modern and responsive layouts based on designs

• Perform bug fixes for codes

• Develop data strategy in collaboration with the team

• Build sustainable codes

• Monitor code, requirements, system risks, and software reliability.

• Proficiency in browser rendering behavior and performance.

• Perform code analysis, requirements analysis, and identification of code metrics

• Should have the ability to work in an Agile environment

What are the required skill sets of a JavaScript Developer?
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You can consider these technical as well as non-technical skills while hiring JavaScript Developers:

Technical Skills:

• Angular

• React JS


• Grunt

• Gulp

• Vue JS

• Data Analysis


• Node JS

• Backbone

• JQuery

• Knockout

• Dojo

• Underscore JS

Non-Technical Skills:

• Analytical Thinking

• Time Management Skills

• Problem-solving skills

• Attention to Details

• Communication skills

• Adaptability

• Decision Making

• Collaboration

• Creativity

What is the package of JavaScript Developer?
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The average salary of JavaScript developers in the US is $108,807 per year. JavaScript developers' salaries start at $76,403 per year.

Why use iMocha’s JavaScript skills tests?
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iMocha's JavaScript skills tests help recruiters assess the JavaScript skills of the candidates. Our JavaScript test questions include various question types like Multiple Choice Questions (MCQ), Fill in the Blanks, Whiteboard Questions, Audio/Video Questions, coding questions, AI-LogicBox, Coding Simulator, and more. These tests are designed to evaluate developers on various experience levels (Entry/Intermediate/Senior) and enable you to:

• Reduce candidate screening time by 85% with our 45+ automated skill tests

• Reduce hiring time by 45%

• Increase the interview-to-selection ratio by 62%

How do you assess the JavaScript expert?
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iMocha's 45+ JavaScript skills assessments include 180+ MCQ questions,100+ coding questions, and an innovative AI-LogicBox questions library, which helps in quantifying the JavaScript skills of the candidates.

Other features include:

• Live coding interviews to assess the coding skills of candidates in real time.  

• Seamless web-based IDE powered by Monaco editor, which comes with IntelliSense with auto-complete, code linting, and syntax warning.  

• Video/audio interview interface to communicate via chat and video in a secure setup.

• Integrated report to enable hiring teams to make well-informed decisions.

Assess and hire the best JavaScript developers with our JavaScript skills tests.

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