Operator Type:
Operator Scope of Action:
Operator Purpose:
Operator First Added:
Operator Altered:
Function [other Function type actions]
Item [operators of similar scope]
Date-time [other Date-time operators]
Baseline
interval(date1,date2)
The function interval(start,end) returns, in Interval data-type form, the time interval between two Date-type dates. For example, to test the interval between a note's initial creation and its most recent modification and to then store it in an Interval-type attribute:
$MyInterval = interval($Created,$Modified);
The interval() function can be used to test the exact equivalence of two Date-type attribute values, using the full Date and time. Thus:
if(interval($DateA,$DateB)=="00:00"){…
The latter gets around the fact that == and != operators match Date-type attributes only at day scope rather than the actual date-time values.