After

Invoke callback after n calls

Status: production ready

Example

var after = require("after")
    , next = after(3, logItWorks)

next()
next()
next() // it works

function logItWorks() {
    console.log("it works!")
}

Example with error handling

var after = require("after")
    , next = after(3, logError)

next()
next(new Error("oops")) // logs oops
next() // does nothing

function logError(err) {
    console.log(err)
}

After < 0.6.0

Older versions of after had iterators and flows in them.

These have been replaced with seperate modules

• iterators
• composite

Installation

npm install after

Tests

npm test

Blog post

• Flow control in node.js

Examples :

• Determining the end of asynchronous operations
• In javascript what are best practices for executing multiple asynchronous functions
• JavaScript performance long running tasks
• Synchronous database queries with node.js

Contributors

• Raynos

MIT Licenced