Facing problem on importing express from express

Question

I am working on MERN app and while importing express it is showing error it shows SyntaxError: Cannot use import statement outside a module my code is

import express from 'express';

const app = express();
const port = process.env.PORT || 3000;

app.get('/',(req,res)=>{
    res.send('this is homepage')
})

app.listen( port ,()=>{
    console.log('server is running at port number 3000')
});

is it this https://stackoverflow.com/questions/58211880/uncaught-syntaxerror-cannot-use-import-statement-outside-a-module-when-import — cmgchess, May 17 '22 at 12:14
Replace `import express from 'express';` with `const express = require('express');` — , May 17 '22 at 12:15
Node with the extension `.js` will use common.js loader, eg. `require`, if you want to use ES loader, you can rename the file extension to `.mjs`. There are other subtle differences between ES & CommonJS, so you might want check those out.. eg, with ES you won't get the very useful `__dirname`, but there are workarounds for this. — Keith, May 17 '22 at 12:22

score 7 · Answer 1 · answered Aug 10 '22 at 17:59

import and export are ES6 syntax.
To enable ES6 modules in your NodeJS app add "type": "module" to your package.json file.
Alternatively you can use the .mjs extension for your files.
Otherwise node defaults to the CommonJS module loader which uses require and module.exports syntax.

ES6 module support is stable in Node v12 and above, and in experimental in v9 - v11, requiring passing the --experimental-module flag.

Node.js documentation: Modules: ECMAScript modules

score 2 · Answer 2 · answered Mar 05 '23 at 07:25

2

Use namespace import

import * as express from "express";

answered Mar 05 '23 at 07:25

Juan David Arce

814
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score 0 · Answer 3 · edited Oct 21 '22 at 15:00

0

This works:

const e = require('express')

edited Oct 21 '22 at 15:00

Tyler2P

2,324
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answered Oct 19 '22 at 11:02

Kwame Saka

19
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Your answer could be improved by adding more information on what the code does and how it helps the OP. – Tyler2P Oct 21 '22 at 15:00
This just repeats an existing answer. – Blastfurnace Oct 22 '22 at 16:21
1

The question is how to use import (ES6) and your answer is to exact opposite – DoArNa Jan 10 '23 at 05:00

score 0 · Answer 4 · edited Jan 11 '23 at 16:12

0

Either you can use:

const express = require('express');

or just write:

"type": "module", in your package.json

edited Jan 11 '23 at 16:12

Wyck

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answered Jan 11 '23 at 03:11

Harshit Patel

1

score 0 · Answer 5 · answered Feb 19 '23 at 17:27

0

add such line in your package.json:

"type": "module"

answered Feb 19 '23 at 17:27

alex

23
5

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Feb 23 '23 at 11:20

Facing problem on importing express from express

5 Answers5