calculateDuration

calculates the duration of a task

number calculateDuration(object config);

Parameters

config

object

the configuration object of a time span

Returns

number

the duration of a task in units specified by the duration_unit option

Example

gantt.config.work_time = true;
gantt.init("gantt_here");
 
// calculate worktime duration between specified dates 
// (for specific task, if multiple working calendars used)
gantt.calculateDuration({
    start_date: new Date(2013,02,15), 
    end_date: new Date(2013,02,25)
    /*,task: task*/
});
 
// or 
gantt.calculateDuration(task);
 
// or 
gantt.calculateDuration(new Date(2013,02,15), new Date(2013,02,25)); //->6

Details

If the work_time option is enabled, the method calculates the task's duration in working time.

The method will use the global work time calendar if no task is specified.
Besides, the method can be called directly for a calendar object.

Configuration object properties

The configuration object can contain the following properties:

start_date - (Date) the date when a task is scheduled to begin
end_date - (Date) the date when a task is scheduled to be completed
task - (object) optional, the object of the task the duration of which should be calculated