Mid-level JavaScript Developer (JS-MID)

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PRICE: R 4,715

Mid-level JavaScript Developer (JS-MID) Exam Voucher

The Certificates.dev Mid-Level JavaScript Developer certification validates your proficiency in managing application state, handling complex asynchronous operations, and building interactive web experiences. Moving beyond basic programming concepts, it shifts focus to real-world integration, data manipulation, and modern ES6+ standards required to write clean, maintainable code.

Key details of the Mid-Level JavaScript Developer exam are as follows:

  • Exam Code: JS-MID

  • Number of Questions: 30 multiple-choice questions and interactive coding challenges.

  • Types of Questions: Hybrid (multiple-choice and hands-on practical coding).

  • Length of Test: 135 minutes (consisting of 30 minutes for theory and 105 minutes for practical coding challenges).

  • Passing Score: Minimum score requirements are set by the certification board and managed online.

  • Recommended Experience: Recommended to have solid fundamental knowledge of JavaScript or a Junior-Level JavaScript certification.

  • Languages: English.

The Mid-Level JavaScript Developer certification validates a professional's expertise across essential modern scripting areas, including asynchronous patterns (Promises, async/await), API integrations (Fetch, Axios), advanced DOM manipulation, and error handling. It proves a candidate's readiness to contribute effectively to software engineering teams, build production-ready features, and resolve complex application bugs, making it ideal for aspiring professional developers and mid-level web engineers.