goyourfly / cronner

Javascript API for finding out exact time, which matches cron time pattern from given point of time.

Cronner

Version

0.0.2

Usage

#!javascript

// Create cronner object: "(seconds) (minutes) (hours) (day of month) (month) (day of week) (year)".
// Seconds and year are optional. Year can not be specified without seconds.
var cronner = new Cronner("* * * * * * *");
// Get next run time from current datetime.
var next = cronner.nextDate();
// Get next run time from specified datetime.
var nextFrom = cronner.nextDate(new Date());

Possible rule values

• seconds: 0-59
• minutes: 0-59
• hours: 0-23
• day of month: 1-31
• month: 1-12
• day of week: 0-7 (0 or 7 is Sunday)
• year: four digit year

Supported features

• Rule groups: 1,2,3,4
• Ranges: 1-4 (includes 1,2,3,4)
• Steps: *\2 (every two hours)
• Steps combined with ranges: 0-9\2 (includes 0,2,4,6,8)

Examples

• 1-10 = 1,2,3,4,5,6,7,8,9,10
• 1-10/2 = 1,3,5,7,9
• 2-12 = 2,3,4,5,6,7,8,9,10,11,12
• 2-12/3 = 2,3,5,6,8,9,11,12

License

MIT