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Node js tutorial step by step 7 Modules Video Lecture | The Complete NodeJS Developer Course (in Hindi) - Back-End Programming
FAQs on Node js tutorial step by step 7 Modules Video Lecture - The Complete NodeJS Developer Course (in Hindi) - Back-End Programming
| 1. What is a module in Node.js? |  |
Ans. A module in Node.js is a reusable piece of code that encapsulates related functionality. It can be a single file or a directory containing multiple files. Modules allow developers to organize their code into smaller, more manageable and reusable units.
| 2. How do you import a module in Node.js? | |
Ans. To import a module in Node.js, you can use the `require()` function and specify the path to the module file. For example, `const myModule = require('./myModule')` will import the `myModule.js` file located in the same directory as the current script.
| 3. Can a module in Node.js export multiple functions or variables? | |
Ans. Yes, a module in Node.js can export multiple functions or variables. To do this, you can assign the functions or variables to the `module.exports` object. For example, `module.exports = { func1, func2, var1 }` will export `func1`, `func2`, and `var1` from the module.
| 4. How can you use a module from another directory in Node.js? | |
Ans. To use a module from another directory in Node.js, you need to specify the path to the module relative to the current script. For example, if the module is located in a directory called `utils` that is at the same level as the current script, you can import it using `const myModule = require('../utils/myModule')`.
| 5. Are all modules in Node.js built-in? | |
Ans. No, not all modules in Node.js are built-in. While Node.js comes with a set of built-in modules like `fs` and `http`, developers can also create their own modules and import them into their applications. These custom modules can be used to encapsulate specific functionality and make the code more modular and reusable.
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Nov 22, 2024 Last updated |
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