Introduction
In my last interview, the interviewer asked me about “Different Ways to Import Files in a Node.js Project”
There are many ways to import files, and I was familiar with all of them, but I could only recall three ways at that moment.
So, In this blog we’ll know some ways to import the files in a Node.js Project.
Using require()
This is the most common way to import files in Node.js.
We use require() followed by the path to the file we want to import.
Example:
Using import (ES6)
With newer versions of Node.js and when using ECMAScript Modules (ESM), we can use the import keyword.
Example:
Using module.exports and require
When we want to export multiple things from a file in Node.js, we can use module.exports to export an object containing those things.
Then, we use require() to import that object and access its properties.
Example:
module.exports = {
myFunction: function() {
// Function code here
},
myVariable: ‘Hello‘
};
// In another file
const myModule = require(‘./myModule‘);
myModule.myFunction();
console.log(myModule.myVariable);
Using export and import (ES6)
Similar to module.exports and require(), we can use export to export multiple things from a file and import to import them.
Example:
export const myFunction = function() {
// Function code here
};
export const myVariable = ‘Hello‘;
// In another file
import { myFunction, myVariable } from ‘./myModule‘;
myFunction();
console.log(myVariable);
These are the main ways to import files in a Node.js project. Each method has its use cases, so it’s essential to understand them to choose the right one for your project.
Conclusion
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Thanks for reading🌻
