Express.js is the most powerful and commonly used Node.js framework. It allows for the creation of complex web applications that are user-friendly and lightweight by offering a structure that is both uncomplicated and flexible. Hiring an Express.js developer will allow your organization to develop applications with excellent scalability, speed, and performance. This Express.js test evaluates candidates’ knowledge and skills in configuring Express.js servers, handling incoming requests, serving data to clients, and routing requests. Candidates who score well on this test understand how Express.js works and are able to use all the tools provided by the framework to implement any business demand with the highest quality, security, and scalability. These candidates can help you create highly performing, scalable, fast, and user-friendly complex web applications. This Express.js test is geared toward an intermediate level and requires a theoretical and practical understanding of the use of Express.js in real-world scenarios.