queuer

Introduction

This is a simple queueing mechanism. It uses interval to check remaining items in the queue. Uses es2015 syntaxes.

Installation

``
$ npm install --save simple-queuer;
`

Usage: basic

`
// import the class
import Queuer from 'simple-queuer';

// instantiate
var queuer = new Queuer(10); // the default value is 10.

// add tasks. this will automatically start the queue.
queuer.push(
function(next){
setTimeout(()=>{next()}, 1000);
}
);

`

Usage: async with promise

`
"use strict";

// import the class
import Queuer from 'simple-queuer';

// instantiate
var queuer = new Queuer(10); // the default value is 10.

function getRandomTimer(){
return new Promise( (resolve, reject) => {
let timer = (next) => {
setTimeout(()=>{
console.log('timer '+i+' done!')
resolve(i);
}, Math.random()*1000);
}
queuer.push(timer);
});
}

// let's create 100 random timers
var promises = [];
for(var i=0; i< 100; i++){
promises.push(getRandomTimer());
}
Promise
.all(promises)
.then((results) => {
console.log('all timers done!');
})
;

``