@breejs/later

What is @breejs/later?

@breejs/later is a scheduling library for JavaScript that allows you to define complex schedules using natural language or cron-like syntax. It is useful for tasks that need to be executed at specific times or intervals.

What are @breejs/later's main functionalities?

Basic Scheduling

This feature allows you to define a schedule using natural language and execute a function at the specified intervals.

const later = require('@breejs/later');

// Define a schedule to run every 5 minutes
const sched = later.parse.text('every 5 mins');

// Execute a function based on the schedule
later.setInterval(() => {
  console.log('This runs every 5 minutes');
}, sched);

Cron Scheduling

This feature allows you to define a schedule using cron syntax, which is useful for more complex scheduling needs.

const later = require('@breejs/later');

// Define a schedule using cron syntax
const sched = later.parse.cron('0 0 * * *'); // Every day at midnight

// Execute a function based on the schedule
later.setInterval(() => {
  console.log('This runs every day at midnight');
}, sched);

Custom Intervals

This feature allows you to define custom intervals for scheduling tasks, providing flexibility for various use cases.

const later = require('@breejs/later');

// Define a custom schedule
const sched = later.parse.recur().every(2).hour().first().minute();

// Execute a function based on the custom schedule
later.setInterval(() => {
  console.log('This runs every 2 hours at the first minute');
}, sched);

Other packages similar to @breejs/later

node-cron

node-cron is a lightweight task scheduler in pure JavaScript for Node.js based on the cron syntax. It is simpler and more focused on cron-based scheduling compared to @breejs/later.

agenda

agenda is a light-weight job scheduling library for Node.js. It offers MongoDB-backed persistence and is more suitable for complex job scheduling and management compared to @breejs/later.

node-schedule

node-schedule is a flexible cron-like and not-cron-like job scheduler for Node.js. It supports both cron and non-cron syntax, similar to @breejs/later, but with a different API and feature set.

README

@breejs/later

This project is a maintained fork of Later, as I needed it to be maintained and modernized for Bree. Later is a library for describing recurring schedules and calculating their future occurrences. It supports a very flexible schedule definition including support for composite schedules and schedule exceptions. Create new schedules manually, via Cron expression, via text expressions, or using a fully chainable API.

Table of Contents

• Features
• Documentation
• Install
• Usage
  • Node
  • Browser
• Contributors
• License

Features

Types of schedules supported by Later:

• Run a report on the last day of every month at 12 AM except in December
• Install patches on the 2nd Tuesday of every month at 4 AM
• Gather CPU metrics every 10 mins Mon - Fri and every 30 mins Sat - Sun
• Send out a scary e-mail at 13:13:13 every Friday the 13th

Documentation

See https://breejs.github.io/later/ for complete documentation and usage.

Install

npm:

npm install @breejs/later

Usage

Node

const later = require('@breejs/later');

console.log(later);

Browser

VanillaJS

This is the solution for you if you're just using <script> tags everywhere!

<script src="https://unpkg.com/@breejs/later"></script>
<script type="text/javascript">
  (function() {
    console.log(later);
  })();
</script>

Bundler

Assuming you are using browserify, webpack, rollup, or another bundler, you can simply follow Node usage above.

Contributors

Name	Website
BunKat
Nick Baugh	http://niftylettuce.com/
yrambler2001	https://yrambler2001.me/

License

MIT © BunKat