README.md

eslint-plugin-react-hooks-ssr

This plugin helps you to forbid DOM globals within the react server side rendering.

• it doesn't support yet React classes
• it supports react hooks and custom hooks
• it requires some naming conventions to identify other functions where globals may be allowed

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install eslint-plugin-react-hooks-ssr:

$ npm install eslint-plugin-react-hooks-ssr --save-dev

Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-react-hooks-ssr globally.

Usage

Add react-hooks-ssr to the plugins section of your .eslintrc.js configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "react-hooks-ssr"
    ]
}

Optionally configure the regexp to whitelist globals within certain function declarations (by default the async prefix).

{
    "rules": {
        "react-hooks-ssr/react-hooks-global-ssr": ["error", { "allowFuncRegExp": /test/ }]
    }
}

Documentation

• a global within useEffect is allowed

function Component() {
    useEffect(() => {
        console.log(window.innerWidth);
    });
    return <div>Hello</div>;
}

• a global within a custom hook (useXXX) is allowed

function Component() {
    useCustomHook(() => {
        console.log(window.innerWidth);
    });
    return <div>Hello</div>;
}

• a global within a function prefixed by async (asyncMyFunc) is allowed. This pattern can be replaced by the allowFuncRegExp option

function asyncMyFunction() {
  console.log(window.innerWidth);
}

• a global within a useState, useReducer and useMemo callback is forbidden

function Component() {
    const [myState, setMyState] = useState(() => {
        return window.innerWidth
    });
    return <div>Hello</div>;
}

• a global within a React Component is forbidden

function Component() {
    console.log(window.innerWidth)
    return <div>Hello</div>;
}