@putout/plugin-convert-to-arrow-function/README.md

🐊Putout plugin adds ability to convert anonymous to arrow function

# @putout/plugin-convert-to-arrow-function [![NPM version][NPMIMGURL]][NPMURL]

[NPMIMGURL]: https://img.shields.io/npm/v/@putout/plugin-convert-to-arrow-function.svg?style=flat&longCache=true
[NPMURL]: https://npmjs.org/package/@putout/plugin-convert-to-arrow-function "npm"

> An **arrow function** expression is a compact alternative to **anonymous function**.
>
> (c) [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions)

🐊[**Putout**](https://github.com/coderaiser/putout) plugin convert **anonymous** to **arrow function**.

## Install

```
npm i @putout/plugin-convert-to-arrow-function
```

## Rule

```json
{
    "rules": {
        "convert-to-arrow-function": "on"
    }
}
```

## ❌ Example of incorrect code

```js
module.exports = function(a, b) {};

function x() {
    return function(a) {
        return b;
    };
}

call(function() {
    return 'world';
});
```

## ✅ Example of correct code

```js
module.exports = (a, b) => {};

function x() {
    return (a) => {
        return b;
    };
}

call(() => {
    return 'world';
});
```

## Comparison

Linter | Rule | Fix
--------|-------|------------|
🐊 **Putout** | [`convert-to-arrow-function`](https://github.com/coderaiser/putout/tree/master/packages/plugin-convert-to-arrow-function#readme) | ✅
⏣ **ESLint** | [`prefer-arrow-callback`](https://eslint.org/docs/latest/rules/prefer-arrow-callback) | ✅

## License

MIT