ESLint - 'process' is not defined
Solution 1
When I got error I had "browser": true
instead of "node": true
.
I have fixed this with following config for .eslintrc.json
file-
{
"env": {
"node": true,
"commonjs": true
},
"extends": "eslint:recommended",
"rules": {
"indent": [
"error",
"tab"
],
"linebreak-style": [
"error",
"unix"
],
"quotes": [
"error",
"single"
],
"semi": [
"error",
"always"
]
},
"parserOptions": {
"ecmaVersion": 2015
}
}
Thanks @FelixKling and @Jaromanda X for quick responses.
Solution 2
Adding "node": "true" to an existing list of environments will do the job, too
"env": {
"node": true,
"commonjs": true,
"browser": true,
"es6": true
}
Solution 3
Add .eslintrc file to root of your project (if you don't already have one) and define globals to ignore
{
"globals": {
"process": true
}
}
Make sure you use process.env though out the project but only in a single configuration file. Consider adding no-process-env
rule.
https://eslint.org/docs/rules/no-process-env
Solution 4
If you have eslint installed, add env: { node: true }
to the .eslintrc.js file
Solution 5
this config helped me and can help others too
{
"parser": "babel-eslint",
"parserOptions": {
"ecmaFeatures": {
"jsx": true,
"modules": true
},
"ecmaVersion": 2020,
"sourceType": "module",
"useJSXTextNode": true,
"warnOnUnsupportedTypeScriptVersion": false
},
"root": true,
"env": {
"browser": true,
"es6": true,
"node": true,
"commonjs": true
},
"extends": [ "eslint:recommended"],
},
}
ArunKolhapur
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Updated on July 08, 2022Comments
-
ArunKolhapur almost 2 years
I am using ESLinter for a simple node project. Below is the only code I have in index.js:
const express = require('express'); const app = express(); app.get('/', (req, res) => { res.send({ hi: 'there' }); }); const PORT = process.env.PORT || 5000; app.listen(PORT);
I am using
VSCode
editor. It automatically runs ESLint for JS code.In the IDE, I see below error for last but one line -
[eslint] 'process' is not defined. (no-undef)
Any Idea what's wrong?
-
Mark Swardstrom about 5 yearsThis got rid of my ESlint 'URL' is not defined, too.
-
try_catch about 2 yearsIn my case I was missing the
node: true
on my env eslint config file. -
Josh about 2 yearsAdding the
"node" : true
worked for me also with this issue.