https://github.com/fabiosantoscode/add-functions

Add two functions together and choose when the original one gets called!
https://github.com/fabiosantoscode/add-functions

Last synced: 10 months ago
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Add two functions together and choose when the original one gets called!

• Host: GitHub
• URL: https://github.com/fabiosantoscode/add-functions
• Owner: fabiosantoscode
• License: mit
• Created: 2018-10-08T14:25:16.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2018-10-24T15:33:10.000Z (over 7 years ago)
• Last Synced: 2025-03-11T13:41:39.997Z (11 months ago)
• Language: JavaScript
• Size: 267 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# add-functions

[![Build Status](https://travis-ci.org/fabiosantoscode/add-functions.svg?branch=master)](https://travis-ci.org/fabiosantoscode/add-functions) [![Coverage Status](https://coveralls.io/repos/github/fabiosantoscode/add-functions/badge.svg)](https://coveralls.io/github/fabiosantoscode/add-functions)

Add two functions together and choose when the original one gets called!

# require('add-functions')(a, (callOriginal) => { callOriginal(); foo()})

Adds one or more functions together. Functions will take an additional callOriginal argument. This function will call the function before yours in the added functions.

```javascript

const a = n => n + 1

const b = (n, callPrevious) => n + callPrevious() + 1

const c = addFunctions(a, b)

c(0)  // -> 2

```

```javascript

const asynchronouslyAdd2 = addFunctions(

    () => getPromise(),

    previous => previous().then(p => p + 1),

    previous => previous().then(p => p + 1),

)

```