Repro

JavaScript file (gulpfile.js):

/* eslint-env node */constgulp=require('gulp');

{"parser":"@typescript-eslint/parser","parserOptions": {"ecmaVersion":3},"env": {"browser":true},"plugins": ["@typescript-eslint"],"extends":"plugin:@typescript-eslint/recommended"}

Expected Result

I have a package with mostly TypeScript, but also agulpfile.js, which is plain old JavaScript. I was expecting this plugin to only lint the TypeScript files

Actual Result

For the gulpfile:
error Require statement not part of import statement @typescript-eslint/no-var-requires

Additional Info

I suppose this applies to any mixed codebase containing JS and TS together

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