examples/async.js
function asyncFunction(a, b, callback) {
    process.nextTick(function(){
        callback(null, a + b);
    })
}
function asyncFunction(a, b, callback) {
    process.nextTick(function(){
        callback(null, a + b);
    })
}
function asyncFunction ( a , b , callback ) { process . nextTick ( function ( ) { callback ( null , a + b ) ; } ) }
Simple asynchronous function
Simple asynchronous function