https://github.com/boennemann/error-first-handler

https://github.com/boennemann/error-first-handler

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• Host: GitHub
• URL: https://github.com/boennemann/error-first-handler
• Owner: boennemann
• Created: 2015-02-02T17:36:27.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2016-10-26T02:38:41.000Z (about 8 years ago)
• Last Synced: 2024-10-13T18:29:15.511Z (2 months ago)
• Language: JavaScript
• Size: 4.88 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# error-first-handler

[![Build Status](https://travis-ci.org/boennemann/error-first-handler.svg)](https://travis-ci.org/boennemann/error-first-handler)

[![Dependency Status](https://david-dm.org/boennemann/error-first-handler.svg)](https://david-dm.org/boennemann/error-first-handler)

[![devDependency Status](https://david-dm.org/boennemann/error-first-handler/dev-status.svg)](https://david-dm.org/boennemann/error-first-handler#info=devDependencies)

[![NPM](https://nodei.co/npm/error-first-handler.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/error-first-handler/)

> handles error first callbacks

```bash

npm i -S error-first-handler

```

```js

var fs = require('fs')

var efh = require('error-first-handler')

var defaultHandler = efh()

fs.readFile('./package.json', defaultHandler(function (data) {

  // If an error occured it is thrown

  // Otherwhise the error is shaved off the arguments array

}))

var custom = efh(function (err) {

  console.log(err)

})

fs.readFile('./package.json', custom(function (data) {

  // If an error occured it is logged

  // Otherwhise the error is shaved off the arguments array

}))

var custom2 = efh(function (err) {

  console.log(err)

  return true

})

fs.readFile('./package.json', custom2(function (data) {

  // If an error occured it is logged

  // As the handler returns a truthy value the callback is executed

}))

// Passing errors to a parent callback is easy

function readFile(cb) {

  fs.readFile('./package.json', efh(cb)(function (data) {

    // If an error occured it is handled by the parent callback

    // Otherwhise the error is shaved off the arguments array

  }))  

}

```

MIT License

2015 Stephan Bönnemann