Template:Age switch/doc

Usage
This template is intended to be used by other templates. It returns a "0" if the "age," with respect to "d," has not been reached or a "1" if it has. Returns "-1" if "d" is not a valid date.

It is useful for countdown timers.


 * Parameters:
 * d is the date the clock "starts" at
 * age is the age at which the result will change from 0 to 1. (optional, default is 1 week)


 * Limitations:
 * The "switch" from 0 to 1 happens only when the page this template is used on is updated or purged. If a page includes a template which calls this template, it is the page the reader sees, not the template which calls this template, which must be purged or updated.


 * See also:
 * Is now
 * Compare dates