sked

Scheduler based in Javascript timers

Installation

$ node install --save sked

Usage

The constructor accepts 3 arguments: config, callback and context.

Use https://github.com/guille/ms.js/ for times if you want.

var sked = require('sked');

var config = {
  start: { date, string or ms },
  period: { ms or string }
};

var context = this;

var scheduler = sked(config, function() {
  // do stuff
  ...
  // if you want to stop the execution:
  scheduler.stop();
}, context);

if you don't pass a context, it will be the scheduler itself

sked(config, function() {
  // do stuff
  if (something) this.stop();
});

There is a start method that can be accessed using sked as a constructor. If you pass true to this method it will execute now (synchronously) in case the start time is not 0 or now.

var Sked = require('sked');
var scheduler = new Sked(config, function() {});
scheduler.start(true); // will do now

Config options

You can skip the options and by default they will became:

{ period: '1d', start: 'now' }

So this will work once a day from now:

var scheduler = sked(function() {
// do stuff
});

start:

start can be omitted and will became now:

var config = { period: '1d' };
// will became
var config = { start: 'now', period: '1d' };
// which is equivalent to
var config = '1d';

start can be a date:

var config = { start: new Date('2017-04-15T18:06:08-07:00'), period:... };

or a string:

// start one minute in the future
var config = { start: '1m', period:... };

or milliseconds:

// start one minute in the future
var config = { start: 60000, period:... };

period:

If period is omitted, will run only once, but for that purpose you better use just a setTimeout unless you are passing a Date instance

// execute once after a second
var config = { start: 1000 };

A string or an integer instead of an object will be interpreted

// this works
var config = '1m';
// also this
var config = 60000;

preRun:

Default false. It's equivalent to passing true to the start method skedInstance.start(true).