vail

time.mjs

 1/** 
 2 * A time duration.
 3 * 
 4 * JavaScript uses milliseconds in most (but not all) places.
 5 * I've found it helpful to be able to multiply by a unit, so it's clear what's going on.
 6 * 
 7 * @typedef  {number} Duration
 8 */
 9/** @type {Duration} */
10const Millisecond = 1
11/** @type {Duration} */
12const Second = 1000 * Millisecond
13/** @type {Duration} */
14const Minute = 60 * Second
15/** @type {Duration} */
16const Hour = 60 * Minute
17
18export {Millisecond, Second, Minute, Hour}