JavaScript (coding): data structures & data types

Use our JavaScript (coding): data structures & data types test to hire the best

Summary of the JavaScript (coding): data structures & data types test

This coding test evaluates a candidate's ability to manipulate data structures and data types. It tests intermediate JavaScript programming skills. This test will help you identify and hire developers with essential JavaScript knowledge.

Covered skills

  • Chart iconData structures & data types

Use the JavaScript (coding): data structures & data types test to hire

Any developer who is expected to have practical experience using JavaScript. The difficulty level of these questions is geared to mid-level developers.

Document file icon Type

Programming skills

Clock icon Time

30 min

Flag icon Audience

English speaking

Chart icon Level

Intermediate

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About the JavaScript (coding): data structures & data types test

JavaScript is a multi-paradigm coding language once focused solely on client-side web page behavior but is now embedded across desktop, mobile, and server applications. Recently, the language has been evolving very fast with the introduction of classes, generators, arrow functions, and many other features.

Working with and implementing data structures is crucial to the success of a developer. An effective data structure will enable you to effectively manage, organize, and represent your data. Data structures are often implemented as objects, so the ability to effectively work with objects and understand object-oriented programming is an important skill to have.

This coding test presents a real-life scenario to your candidates. They have 30 minutes to implement a data structure that meets the given requirements. Candidates can run the code against a selected number of test cases to see if they are on track. After submission, the code is automatically scored based on another set of test cases that also covers exceptions or corner cases. You will be able to play back how the code came about in the coding editor.

This test allows the candidate to showcase their knowledge about data structures in general, their ability to identify common problems, and their ability to solve those problems efficiently with JavaScript specific solutions.

We recommend combining this coding test with other tests evaluating the candidate's analytical and algorithmic thinking.

javascript data structures test

The test is made by a subject-matter expert

Kamil M.

Freelance programmer Kamil can’t be put in a box: from software development to systems administration to translations, he’s happiest doing a little bit of everything—particularly if it involves cybersecurity or data science.

A perfectionist at heart, Kamil credits his professional achievements to a belief that life-long learning and discovery are the key to reaching new levels.

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FAQs

What is the difference between an assessment and a test?
An assessment is the total package of tests and custom questions that you put together to evaluate your candidates. Each individual test within an assessment is designed to test something specific, such as a job skill or language. An assessment can consist of up to 5 tests and 20 custom questions. You can have candidates respond to your custom questions in several ways, such as with a personalized video.
Can I add my own questions to an assessment?
Yes! Custom questions are great for testing candidates in your own unique way. We support the following question types: video, multiple-choice, coding, file upload, and essay. Besides adding your own custom questions, you can also create your own tests.
How do video questions work?
A video question is a specific type of custom question you can add to your assessment. Video questions let you create a question and have your candidates use their webcam to record a video response. This is an excellent way to see how a candidate would conduct themselves in a live interview, and is especially useful for sales and hospitality roles. Some good examples of things to ask for video questions would be "Why do you want to work for our company?" or "Try to sell me an item you have on your desk right now." You can learn more about video questions here.
Can you explain how the other custom question types work?
Besides video questions, you can also add the following types of custom questions: multiple-choice, coding, file upload, and essay. Multiple-choice lets your candidates choose from a list of answers that you provide, coding lets you create a coding problem for them to solve, file upload allows your candidates to upload a file that you request (such as a resume or portfolio), and essay allows an open-ended text response to your question. You can learn more about different custom question types here.
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Can I combine the JavaScript (coding): data structures & data types test with other tests?
Yes. You can add up to five tests to each assessment.
Where in my recruitment process should I use the JavaScript (coding): data structures & data types test?
We recommend using our assessment software as a pre-screening tool at the beginning of your recruitment process. You can add a link to the assessment in your job post or directly invite candidates by email. TestGorilla replaces traditional CV screening with a much more reliable and efficient process, designed to find the most skilled candidates earlier and faster.
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