Package Exports
- callback-count
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (callback-count) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
callback-count 
Count callbacks before continuing, tiny control flow helper, allows dynamic counting.
Flow control
var callbackCount = require('callback-count');
var counter = callbackCount(done);
setTimeout(counter.inc().next, 100);
setTimeout(counter.inc().next, 100);
function done (err) {
console.log('finished.');
}.inc() allows you to dynamically update the number of callbacks you are expecting.
var callbackCount = require('callback-count');
var counter = callbackCount(done);
counter.inc().inc().inc();
counter.next().next().next();
function done (err) {
console.log('finished.');
}The constructor can take an initial value for the count expected
var callbackCount = require('callback-count');
var counter = callbackCount(3, done);
counter.next().next().next();
function done (err) {
console.log('finished.');
}.next() decrements the count and callsback when the count has reached 0
var counter = createCounter(3, done);
counter.next().next().next();
function done (err) {
console.log(counter.count); // 0
console.log('finished.');
}if .next() receives an error it will callback immediately
var counter = createCounter(3, done);
counter.next(new Error('boom'));
function done (err) {
console.log(err.message); // boom
}