eslint-plugin-jsx-extras

A set of Eslint plug-ins for app specific JSX based rules.

Currently this package has a single rule which is being used for the upclose.me website:

Rules

jsx-no-string-literals

This rule disallows the use of string literals (other than numbers) in a JSX expression. It exists so that a developer doesn't accidentally forget to put localized strings for a component.

no-untyped-react-exports

This rule is for using ES6 classes with flowtypes. It warns you if you are exporting a React ES6 class while passing it through a function:

export default autobind(MyReactClass)

This will work fine:

const toExport = autobind(MyReactClass)
export default toExport

As such this rule isn't perfect. You should be annotating the type for toExport:

const toExport: typeof MyReactClass = autobind(MyReactClass)
export default toExport

Future

Some rules that I'm currently working on:

1. multiline-attributes-align: To check that JSX attributes are either limited to a single line or the attributes all match the same indentation.

2. jsx-like-html: To check that a <br /> tag is always self closing, while a <span></span> tag is never self closing.

3. jsx-ternary: To enforce indentation rules for ternary expressions in JSX.

4. jsx-function-bind: For ES6 classes, a rule that will check that you use .bind(this) for callback functions in JSX.