Event is not defined with flow type, any way to fix this without ejecting from standard?

[kellyrmilligan]

I'd prefer not to eject, but the current setup with flow seems to be incomplete.

these two rules should be enabled to fully support the flow definitions:

https://github.com/gajus/eslint-plugin-flowtype#eslint-plugin-flowtype-rules-define-flow-type
and
https://github.com/gajus/eslint-plugin-flowtype#eslint-plugin-flowtype-rules-use-flow-type

I was lead to these by:

https://github.com/babel/babel-eslint#known-issues

in my setup, I am using latest babel-eslint as the parser, and built in flow stuff works. but if I try and do

function handleEvent(evt: Event) {

then I seem to be out of luck.

thoughts?

"standard": {
    "parser": "babel-eslint",
    "globals": [
      "jest",
      "it",
      "expect",
      "describe"
    ],
    "ignore": [
      "/src/**/*.test.js"
    ],
    "plugins": [
      "flowtype",
      "react"
    ]
  }

[cgestes]

Same issue here.

A lot of undefined because of those rules.

Any PR in the pipe?

[seanng]

I'm facing the same problem :(

[ematipico]

What are the versions of your packages? eslint, flowtype plugin, standard, etc.? It would be great to have a small repo where we could reproduce the issue

[fbaiodias]

I was having a similar issue, getting a lot of '<Type>' is not defined., but using babel-eslint@7.2.1 fixed it for me.

[mcchrish]

@fbaiodias your solution works. Thanks

[doughsay]

Downgrading to babel-eslint@7.2.1 fixed some types not being defined but not others. (It fixed my custom types from not being recognized later in the file). But it didn't fix Event and HTMLInputElement from being undefined. Upgrading to the latest version again fixes Event, but breaks the others...

What's going on here...?

EDIT: scratch that... downgrading fixes the problems, the other problems I was having was not prefixing browser globals with window., which is clearly stated at the top of standardjs.com

[CoenWarmer]

Downgrading to babel-eslint@7.2.1 indeed fixed this for us. Would be ideal however if we could upgrade to 8.0.2 (currently the latest and greatest).

Just for my understanding, is this flow type undef behavior due to an an issue with babel-eslint or with standard?

[borismacias]

Also work for us with babel-eslint@7.2.1, tried to upgrade to babel-eslint@7.2.3 and it breaks again.

[pietrofxq]

Is there a better workaround than downgrading babel-eslint?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[feross]

I'm happy to do some digging on this issue. But I'm not a Flow user.

Can you share a repo with a minimal setup that exhibits the issue so I can see it in action? Thanks!

[feross]

Related to: #1045

[no-response]

This issue has been automatically closed because there was no response to the maintainer's request for more information from the issue opener. With only the information that is currently in the issue, we don't have enough information to take action. Please leave a comment or open a new issue if you have the additional information we need to investigate further.