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

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