Next

Because asynchronous calls suck out your brain without a proper async handler. This one is just 4 lines yet it solves a huge issue.

Install

1	npm install nextjs

How it works?

1. Create a Next Instance: var next = new Next(2, finish)
2. Then you call next() as many times as you specified in the count. In this example it is 2.
3. After next was called 2 times, the finish function will be called.

Example

1	// Include
2	var Next = require('nextjs');
3	
4	// CREATE a Next Instance
5	var next = new Next(2, finish);
6	
7	// Log Start
8	console.log('start');
9	
10	// Will happen after 5 seconds passed
11	setTimeout(function(){ console.log('A'); next(); }, 5000); 
12	
13	// Will happen after 2 seconds passed
14	setTimeout(function(){ console.log('B'); next(); }, 2000); 
15	
16	// Will happen in the end after 5 seconds passed
17	function finish(){ console.log('finished'); } 
18	
19	// output result
20	// 0 second => start
21	// 2 second => B
22	// 5 second => A
23	// 5 second => finished

Next parameters

• count: the number of times you will have to call the next() instance. required integer
• finish: finishing callback required function

Key features

• It's just 4 lines - 0.16kb
• Easy to use
• Its part of dietjs