README
popfun - pop function
The popfun Node.js 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]
).
Example
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 do:
npm install popfun