https://github.com/michaelnisi/popfun

Remove last element from array, if it is a function
https://github.com/michaelnisi/popfun

Last synced: about 1 month ago
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Remove last element from array, if it is a function

• Host: GitHub
• URL: https://github.com/michaelnisi/popfun
• Owner: michaelnisi
• License: mit
• Created: 2012-09-28T05:47:23.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2015-09-08T15:25:06.000Z (over 9 years ago)
• Last Synced: 2024-11-14T21:30:09.302Z (about 1 month ago)
• Language: JavaScript
• Homepage:
• Size: 172 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# popfun - pop function

The **popfun** [Node.js](http://nodejs.org/) module removes the last element from an array if it is a function and returns it. This can be handy to fetch the callback from an arguments array (`[err, a1, a2, an, cb]`).

[![Build Status](https://secure.travis-ci.org/michaelnisi/popfun.png)](http://travis-ci.org/michaelnisi/popfun)

## Example

```js

var popfun = require('popfun')

function echo () {

  var args = Array.prototype.slice.call(arguments)

  var callback = popfun(args)

  if (callback) callback(null, args.join(' '))

}

echo('hey', 'you', function (err, msg) {

  console.log(msg)

})

```

## Exports

### popfun(args)

- `args` Object to pop if last element is of type 'function'

This function can take any type. If it receives an array, it pops the last element, and returns the element; else it returns `null`.

## Installation

With [npm](https://npmjs.org/package/popfun) do:

```

npm install popfun

```

## License

[MIT License](https://raw.github.com/michaelnisi/popfun/master/LICENSE)