I have a typescript project, I use @typescript-eslint/parser and @typescript-eslint/eslint-plugin to lint it.

It seems eslint couldn't recognize undefined in my project. The error message is:

Variable 'undefined' implicitly has an 'any' type.ts(7005)

I have searched on the internet but got nothing.

Have you ever got the same problem?

CodePudding user response：

Could you try to add the line below to tsconfig.ts?:

"noImplicitAny": false

CodePudding user response：

I found two ways to resolve it:

1. npm i @types/node --save-dev
2. "lib": ["esnext", "DOM"] in tsconfig.json

You don't need to do both of them.