Why is this configuration for ESLint in Visual Studio 2017 not working?

Question

I am currently wondering, why ESLint is not working in my project in Visual Studio 2017. There is the file ".eslintrc" in the project-root: ``` { "extends": "defaults/configurations/eslint", "env": { "browser": true }, "globals": { "xhr": true }, "rules": { "eqeqeq": [ "error", "always", { "null": "ignore" } ] } } ``` If I remove the line with "eqeqeq", everything is working fine. But as soon as I add this line, no errors will be displayed at all. Question 1: Is there any way to see an error-message about the issue ESLint obviously has? Question 2 as a fallback: What is the issue with this line?

Accepted Answer

Thanks to btmills I took a dive into the sources and found the version: VS 2017 uses ESLint 2.0.0 (released 2016-02-12).

The correct configuration is:

```
"eqeqeq": [ 2, "allow-null" ]
```

Documentation is available here:

- Getting started

- Rules

The links from the error-list in VS 2017 lead to the current documentation, where you can find many features that do not work in version 2.0.0.

Why is this configuration for ESLint in Visual Studio 2017 not working?

Solution

Problem