PhpStorm `no-unused-var` highlight issue in JSX

[kinyat]

My PhpStorm generates wrong highlights for no-unused-var in JSX when using the given default .eslintrc by StandardJS.

If I run eslint or standard in command line, there are no any rule conflicts.

By changing the default .eslintrc to the following, it will solve the issue in PhpStorm.

{
  "extends": ["standard"],
  "parser": "babel-eslint",
  "plugins": [
    "react"
  ],
  "rules": {
    "react/jsx-uses-vars": "error"
  }
}

[feross]

Oh, this is because the Webstorm instructions don't tell users to install eslint-config-standard-jsx. Your solution works, but you're not getting the full set of rules that standard adds for JSX.

I'll send a PR to update the instructions.

[feross]

PR is sent: #651