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calculateEndDate

Description​

Calculates the end date of a task

calculateEndDate: (config: object, duration: number) => Date

Parameters​

  • config - (required) object | Date - either the configuration object of a time span or the start date of the task
  • duration - (optional) number - the duration of the task. The parameter is required when the first parameter is specified as start_date

Returns​

  • end_date - (Date) - the date when a task is scheduled to be completed

Example​

gantt.config.work_time = true;
gantt.init("gantt_here");
 
// calculate the end date using global worktime settings
gantt.calculateEndDate({start_date: new Date(2013,02,15), duration: 48});
// or
gantt.calculateEndDate(new Date(2013,02,15), 48);

// calculate end date for a specific task calendar
gantt.calculateEndDate({start_date: new Date(2013,02,15), duration: 48, task:task});
// or, a short form:
// will use calendar currently assigned to a task, task.start_date and task.duration
gantt.calculateEndDate(task);

Details​

note

If the work_time option is enabled, the method considers duration as working time.

You can also calculate the start date by using the calculateEndDate method:

//calculate the start date:
task.start_date = gantt.calculateEndDate({
    start_date: task.end_date,
    duration: -task.duration
});

Configuration object properties​

The configuration object can contain the following properties:

  • start_date - (Date) the date when a task is scheduled to begin
  • duration - (number) the duration of a task
  • unit - (string) optional, the time unit of the duration: "minute", "hour", "day", "week", "month", "year"
  • task - (object) optional, the object of the task the duration of which should be calculated