8000 Bug: no-inferrable-types fixer does not remove `?` when removing the type · Issue #5340 · typescript-eslint/typescript-eslint · GitHub
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Bug: no-inferrable-types fixer does not remove ? when removing the type #5340
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Description

@paperclover

Before You File a Bug Report Please Confirm You Have Done The Following...

  • I have tried restarting my IDE and the issue persists.
  • I have updated to the latest version of the packages.
  • I have searched for related issues and found none that matched my issue.
  • I have read the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=4.7.2&sourceType=module&code=GYVwdgxgLglg9mABFApgZygCgIYH4BciYIAtgEYoBOiAvIgIwCUiA3ogL4CwAUEA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1uYDNFpoAQwBGSWkVKoMkftA7RI4MAF8QyoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA

There is a lint error, use the fix command on it.

Repro Code< 6795 /h3>
function test(a?: number = 1) {}

ESLint Config

module.exports = {
  parser: "@typescript-eslint/parser",
  rules: {
    "@typescript-eslint/no-inferable-types": ["error"],
  },
};

tsconfig

No response

Expected Result

Valid TS Code

function test(a = 1) {}

Actual Result

Code that throws ts error

Parameter cannot have question mark and initializer

function test(a? = 1) {}

Additional Info

No response

Versions

package version
@typescript-eslint/eslint-plugin 5.30.6
@typescript-eslint/parser 5.30.6
TypeScript 4.7.4
ESLint 8.19.0
node 16.16.0

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    accepting prsGo ahead, send a pull request that resolves this issuebugSomething isn't workingpackage: eslint-pluginIssues related to @typescript-eslint/eslint-plugin

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