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[ban-types] support banning `[]` #2582

papb opened this issue Sep 19, 2020 · 0 comments

[ban-types] support banning `[]` #2582

papb opened this issue Sep 19, 2020 · 0 comments


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@papb papb commented Sep 19, 2020

  • I have tried restarting my IDE and the issue persists.
  • I have updated to the latest version of the packages.
  • I have read the FAQ and my problem is not listed.


  "rules": {
    "@typescript-eslint/ban-types": [
        "extendDefaults": true,
        "types": {
          "[]": "Don't use the empty array type `[]`, it will only allow empty arrays. Use `SomeType[]` instead.",
          "[[]]": "Don't use `[[]]`, it would only allow an array with a single element which is an empty array. Use `SomeType[][]` instead.",
          "[[[]]]": "Don't use `[[[]]]`. Use `SomeType[][][]` instead."
type X = [];
// tsconfig.json
	"compilerOptions": {
		"module": "commonjs",
		"strict": true,
		"target": "es2017",
		"outDir": "./dist",

Expected Result

The custom ban to work

Actual Result

No errors

Additional Info



package version
@typescript-eslint/eslint-plugin 3.10.1
@typescript-eslint/parser 3.10.1
TypeScript 4.0.2
ESLint 7.9.0
node 12.18.0
bradzacher pushed a commit that referenced this issue Oct 25, 2020
fix #2582
This was referenced Oct 26, 2020
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Nov 25, 2020
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