const utf8Encoder = new TextEncoder(); in Node js

Question

I am trying to use mongodb so I install mongoose package

but the problem is when I am writing like this

const express = require("express");
const dotenv = require("dotenv");
const mongoose = require("mongoose"); //getting error here

It showing me error like this

const utf8Encoder = new TextEncoder();
                    ^

ReferenceError: TextEncoder is not defined

If I am commenting mongoose line I don't get any error but I need to use this even i checked my node version its 16.5.0 I tried looking an old post where same error occur but its not understandable to me any help ? old post link enter link description here

how to fix this error

Check my comment, it's a node version issue. – Kishor Patidar Apr 01 '22 at 11:31 — Kishor Patidar, Apr 01 '22 at 11:31

score 20 · Accepted Answer · edited Oct 07 '21 at 16:51

Open your encoding.js folder in node_modules>whatwg-url>dist

and write this code

"use strict";
var util= require('util');
const utf8Encoder = new util.TextEncoder();
const utf8Decoder = new util.TextDecoder("utf-8", { ignoreBOM: true });

in place of

"use strict";
const utf8Encoder = new TextEncoder();
const utf8Decoder = new TextDecoder("utf-8", { ignoreBOM: true });

all you where missing is this small part by including utils

var util= require('util');
const utf8Encoder = new util.TextEncoder();
const utf8Decoder = new util.TextEncoder("utf-8", { ignoreBOM: true });

score 5 · Answer 2 · answered Mar 27 '22 at 21:39

5

This worked for me at the top of my small script file.

"use strict";
const util = require('util');
global.TextEncoder = util.TextEncoder;
global.TextDecoder = util.TextDecoder;

answered Mar 27 '22 at 21:39

Rob Evans

2,822
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You can also add it to jest.setup.js is you are encountering it in your tests. – funerr Oct 18 '22 at 10:37

score 3 · Answer 3 · answered Apr 01 '22 at 11:31

3

It's a compatibility issue with node.js version, upgrade your node.js version and then reinstall node packages.

Upgrade your version with: v16.14.2

It's not recommended to modify files inside the node_modules folder

You can use NVM to manage multiple node.js versions, here are the installation guide: https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-20-04

answered Apr 01 '22 at 11:31

Kishor Patidar

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Seems not necessary to go to `v16.14.2`. Just fixed this by going to `v14.21.1`. Version `v14.17.4` works as well, and probably several before that. – tanius Jan 03 '23 at 01:47

Paul Stephen Edache · Answer 4 · 2021-10-11T10:29:41.557

Open your encoding.js folder in node_modules

Open the node_modules
Locate the whawg-url folder and open.
Search for dist folder - there, you'd find the encoding.js folder
Open via VS Code or any IDE of your choice.

Replace these line of code

"use strict";
const utf8Encoder = new TextEncoder();
const utf8Decoder = new TextDecoder("utf-8", { ignoreBOM: true });

With this --

"use strict";
var util= require('util');
const utf8Encoder = new util.TextEncoder();
const utf8Decoder = new util.TextDecoder("utf-8", { ignoreBOM: true });

Then you are good to go.

score 1 · Answer 5 · edited Nov 08 '21 at 16:38

1

This seems to be an issue with older node versions. You need to use the latest node. If you are using nvm type

nvm use node

Note: to download latest node with nvm use this command

nvm install --lts

edited Nov 08 '21 at 16:38

Nimantha

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answered Nov 08 '21 at 08:36

ZowWeb

69
7

score 0 · Answer 6 · answered Feb 23 '22 at 11:57

0

This is because your using an old version of node, if you install node using apt install node, you get an old version. So you need to upgrade to a recent version of node.

answered Feb 23 '22 at 11:57

Armar

249
3
7

score 0 · Answer 7 · answered Feb 13 '23 at 14:26

You just need a compatible node version of libraries in package.json. I encountered the same error the mistake I made is that I used nvm and I ran npm install with node v12.x.x for some reason nvm did not set the current version it set v10.x.x when I returned to the project folder. so here what I resolved the error:

$ rm -rf node_modules
# use another way to switch to the correct version if not using nvm
$ nvm use v12.x.x # Switch node version to v12.x.x
$ npm install
# then restart the server

if you use nvm and you want to set the project node version automatically when entering the project folder, just follow this instruction.

const utf8Encoder = new TextEncoder(); in Node js

7 Answers7