ReferenceError: TextEncoder is not defined

[yhojann-cl]

Relative from: Automattic/mongoose#10713

In https://github.com/jsdom/whatwg-url/blob/master/src/encoding.js line 2 says:

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

But node show an error message:

/app/node_modules/whatwg-url/dist/encoding.js:2
const utf8Encoder = new TextEncoder();
                    ^

ReferenceError: TextEncoder is not defined
    at Object.<anonymous> (/app/node_modules/whatwg-url/dist/encoding.js:2:21)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/app/node_modules/whatwg-url/dist/url-state-machine.js:5:34)
    at Module._compile (internal/modules/cjs/loader.js:778:30)

My node version:

$ node -v
v14.17.5

$ npm -v
6.14.14

The version in package.json of dependency is:

{
  "_from": "whatwg-url@^9.1.0",
  "_id": "whatwg-url@9.1.0",

I installed from mongoose package but have last version of whatwg-url package.

[domenic]

You need to provide an example that only uses whatwg-url, no other packages, that we can run with node test.js.

[camperjett]

I am having the same issue

[yhojann-cl]

Is a node version problem: Automattic/mongoose#10713 (comment)

[sarmiSiva]

no, it's not working.

[wyatt8740]

It is not a node version problem - unless by that you mean my version of nodeJS is too old (which is quite possible)? The comment you linked is a problem of mismatches, from how they phrase it.

There is no mismatch between node and nodejs version numbers.

$ node -v
v10.20.1
$ nodejs -v
v10.20.1

$ node ./server.js
/path/to/project/node_modules/whatwg-url/lib/encoding.js:2
const utf8Encoder = new TextEncoder();
                    ^

ReferenceError: TextEncoder is not defined
    at Object.<anonymous> (/path/to/project/node_modules/whatwg-url/lib/encoding.js:2:21)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/path/to/project/node_modules/whatwg-url/lib/url-state-machine.js:5:34)
    at Module._compile (internal/modules/cjs/loader.js:778:30)

Update: yeah, Installing Node 12.22.7 fixed it for me.

[domenic]

Indeed, your version is too old. Node v10 is not supported.

[Unrasend]

The same issue on the nodejs v16.13.0

[dzek69]

@Unrasend it won't happen on v16, you probably have multiple versions of node in your system and something you use to run your code may use different version from what you have when you type node in your terminal

i just solved the same issue for someone. IDE was using one version of node (10.x) when running tests, while on the project there was some nvm config that was using 16.x when running tests via npm run.

[bustedware]

this stackoverflow helped me https://stackoverflow.com/a/69187990/3642044

[FINDarkside]

@dzek69 I've added console.log(process.version) before that new TextEncoder(); line and it logs v16.13.2.

Had to add the following to jest setup file:

import { TextEncoder, TextDecoder } from 'util';
global.TextEncoder = TextEncoder;
global.TextDecoder = TextDecoder;

[alexKarvounis]

@FINDarkside 's solution solved it for me.

[dzek69]

@FINDarkside what's your error message then? Maybe you run something before that mess up the global object?

The simplest:

console.log(process.version);
console.log(new TextEncoder());

run on node 16.13.2 gives:

v16.13.2
{ encoding: 'utf-8' }

Which is expected, docs for that specific version says it's in the global:
https://nodejs.org/dist./v16.13.2/docs/api/util.html#class-utiltextencoder