Accurately Assess JavaScript Skills with Our Coding Test
Streamline your hiring process and identify top JavaScript talent with our comprehensive coding assessment. Trusted by over 10,000 companies worldwide.
JavaScript Test That Evaluates Real-World Coding Skills and Frontend Readiness
This test helps you:
- Evaluate real-world coding abilities through hands-on challenges
- Assess problem-solving skills and code quality
- Identify top JavaScript developers for your team
- Customize difficulty levels for all experience levels
- Secure, proctored assessments for remote hiring
Delivered via HackerEarth’s trusted assessment platform.

Improve Hiring Accuracy by 25%
- Identify top coders with proven skills
- Reduce bad hires and costly mis-hires
- Make data-driven hiring decisions
Reduce Time-to-Hire by 14 Days
- Streamline screening and evaluation
- Automate coding assessments at scale
- Quickly identify qualified candidates
Make Data-Driven Hiring Decisions
- Gain insights into candidates' coding abilities
- Objective skills benchmarking and scoring
- Detailed performance reports for each candidate
Core JavaScript Fundamentals
Evaluates a candidate’s grasp of syntax, data types, operators, loops, and functions—ensuring they have a solid foundation to build reliable frontend or backend code.
DOM Manipulation and Event Handling
Assesses the ability to interact with the Document Object Model, manage events, and create responsive UI behaviors—critical for frontend roles.
Asynchronous Programming
Tests understanding of promises, async/await, and callbacks. This skill is vital for handling real-time operations like API calls and data loading in modern applications.
Problem-Solving and Debugging
Measures logical reasoning, code debugging, and the ability to write clean, maintainable code—key traits of effective JavaScript developers
ES6+ Concepts and Modern Syntax
Checks familiarity with modern JavaScript features such as arrow functions, destructuring, modules, and classes, ensuring candidates can work with up-to-date codebases.
Browser and Runtime Behavior
Assesses knowledge of JavaScript execution context, hoisting, scope, and closures—ensuring candidates understand how their code behaves in real-world environments.
Frontend Developers
The JavaScript Test is ideal for evaluating candidates building interactive UIs, working with frameworks like React or Vue, and managing complex client-side logic. It helps identify developers who can translate designs into functional interfaces with performance and accessibility in mind.
Full-Stack Developers
For roles that span both frontend and backend, the test assesses candidates' ability to handle JavaScript across the stack—including asynchronous logic, DOM manipulation, and API integrations—ensuring they can contribute across the entire application lifecycle.
Junior Engineers and Graduate Hires
Whether hiring from bootcamps or university programs, this test helps benchmark foundational JavaScript skills and coding readiness. It enables recruiters to filter candidates who can hit the ground running in entry-level or training-intensive environments.
Role-Specific Customization
Adapt the test to match the needs of your tech stack—whether it’s focused on DOM manipulation for frontend roles, API integration for full-stack developers, or modern ES6+ syntax for product engineering teams. You can also include scenario-based tasks relevant to your business use cases.
Competency Weighting
Emphasize the skills that matter most to your role—like asynchronous programming, debugging, or performance optimization. Configure the test to prioritize specific competencies so you can shortlist candidates who align with your team’s coding standards and workflows.
Branding and Styling
Deliver a cohesive candidate experience by adding your company’s logo, colors, and messaging. A branded test experience reinforces your employer brand and helps candidates engage more confidently during assessments.
Frontend Skills Test
Assess proficiency in HTML, CSS, and responsive design—ideal for roles where UI implementation, cross-browser compatibility, and layout precision are essential.
Debugging Test
Evaluate a candidate’s ability to identify and fix logical or runtime errors in JavaScript code—ensuring code quality and faster problem resolution on the job.
React or Framework-Specific Test
Add role-specific depth by testing knowledge of React, Angular, or Vue. Ideal for assessing component logic, state management, and real-world project experience.
English Proficiency Test
Ensure candidates can understand documentation, communicate clearly with teams, and write maintainable code with proper naming conventions and comments.
Why choose HackerEarth’s assessment platform?
automated evaluations, ensuring efficient and objective hiring.
25,000+ questions across 1000+ skills at your disposal
Project type questions to simulate on- the-job problems
Industry's best proctoring solution with automated invigilation
An experience that hiring managers like and developers love
Detailed reports on each candidate’s performance
Data-driven insights to help finetune the hiring funnel
A coding assessment platform that is built for enterprises and loved by everyone
worries, regardless of the size of your organization.
How long does the JavaScript test take?
The standard test duration is 90 minutes, but this can be customized based on your needs. We offer flexible timing options to fit your hiring process.
What coding skills are assessed?
Our test evaluates core JavaScript language fundamentals, data structures and algorithms, problem-solving abilities, code quality, and debugging skills.
How do I ensure the JavaScript test’s security?
We offer secure remote proctoring powered by AI to maintain test integrity. Proctors can monitor candidates and flag any suspicious behavior.
Can I customize the test content?
Yes, our enterprise plans allow you to add custom coding challenges and questions tailored to your specific requirements.
How do I get started?
Simply sign up for a free trial or request a demo. Our team will guide you through the implementation process step-by-step.
What if I'm not satisfied?
We offer a 30-day money-back guarantee. If you're not completely satisfied, we'll refund your purchase, no questions asked.
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