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Node js tutorial step by step 16 App.js Video Lecture | The Complete NodeJS Developer Course (in Hindi) - Back-End Programming
FAQs on Node js tutorial step by step 16 App.js Video Lecture - The Complete NodeJS Developer Course (in Hindi) - Back-End Programming
| 1. What is Node.js and how does it relate to back-end programming? |  |
Ans. Node.js is a runtime environment that allows developers to run JavaScript code on the server-side. It is commonly used for back-end programming as it provides a platform for building scalable and efficient web applications that can handle a large number of concurrent requests.
| 2. What is the role of app.js in Node.js back-end programming? | |
Ans. In Node.js back-end programming, app.js is commonly used as the entry point of the application. It is responsible for setting up the server, defining routes, handling requests, and managing middleware. It acts as the main file that ties all the different components of the application together.
| 3. How can I create a basic Node.js server using app.js? | |
Ans. To create a basic Node.js server using app.js, you can start by importing the required modules such as `express`. Then, you can create an instance of the express application, define routes using `app.get()` or `app.post()`, and finally start the server by calling `app.listen()` with the desired port number.
| 4. What is the purpose of middleware in Node.js back-end programming? | |
Ans. Middleware functions in Node.js back-end programming are used to modify the request and response objects before they reach the route handler. They can perform tasks such as authentication, logging, data validation, and error handling. Middleware functions can be added to the application using `app.use()` and are executed in the order they are defined.
| 5. Can I use other programming languages for back-end programming instead of Node.js? | |
Ans. Yes, there are several other programming languages that can be used for back-end programming, such as Python, Ruby, Java, and PHP. The choice of programming language depends on factors such as the requirements of the project, the developer's familiarity with the language, and the availability of libraries and frameworks. Each programming language has its own strengths and weaknesses, so it's important to choose the one that best suits the needs of the application.
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Dec 23, 2024 Last updated |
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