date.js

来自「ajax框架原吗,dojo目前很流行的,希望大家多多学习啊」· JavaScript 代码 · 共 68 行

if(!dojo._hasResource["dojox.dtl.utils.date"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.dtl.utils.date"] = true;
dojo.provide("dojox.dtl.utils.date");

dojo.require("dojox.date.php");

dojo.mixin(dojox.dtl.utils.date, {
	format: function(/*Date*/ date, /*String*/ format){
		return dojox.date.php.format(date, format, dojox.dtl.utils.date._overrides);
	},
	timesince: function(d, now){
		// summary:
		//		Takes two datetime objects and returns the time between then and now
		//		as a nicely formatted string, e.g "10 minutes"
		// description:
		//		Adapted from http://blog.natbat.co.uk/archive/2003/Jun/14/time_since
		if(!(d instanceof Date)){
			d = new Date(d.year, d.month, d.day);
		}
		if(!now){
			now = new Date();
		}

		var delta = Math.abs(now.getTime() - d.getTime());
		for(var i = 0, chunk; chunk = dojox.dtl.utils.date._chunks[i]; i++){
			var count = Math.floor(delta / chunk[0]);
			if(count) break;
		}
		return count + " " + chunk[1](count);
	},
	_chunks: [
		[60 * 60 * 24 * 365 * 1000, function(n){ return (n == 1) ? 'year' : 'years'; }],
		[60 * 60 * 24 * 30 * 1000, function(n){ return (n == 1) ? 'month' : 'months'; }],
		[60 * 60 * 24 * 7 * 1000, function(n){ return (n == 1) ? 'week' : 'weeks'; }],
		[60 * 60 * 24 * 1000, function(n){ return (n == 1) ? 'day' : 'days'; }],
		[60 * 60 * 1000, function(n){ return (n == 1) ? 'hour' : 'hours'; }],
		[60 * 1000, function(n){ return (n == 1) ? 'minute' : 'minutes'; }]
	],
	_months_ap: ["Jan.", "Feb.", "March", "April", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.", "Dec."],
	_overrides: {
		f: function(){
			// summary:
			//		Time, in 12-hour hours and minutes, with minutes left off if they're zero.
			// description: 
			//		Examples: '1', '1:30', '2:05', '2'
			//		Proprietary extension.
			if(!this.date.getMinutes()) return this.g();
		},
		N: function(){
			// summary: Month abbreviation in Associated Press style. Proprietary extension.
			return dojox.dtl.utils.date._months_ap[this.date.getMonth()];
		},
		P: function(){
			// summary:
			//		Time, in 12-hour hours, minutes and 'a.m.'/'p.m.', with minutes left off
			//		if they're zero and the strings 'midnight' and 'noon' if appropriate.
			// description:
			//		Examples: '1 a.m.', '1:30 p.m.', 'midnight', 'noon', '12:30 p.m.'
			//		Proprietary extension.
			if(!this.date.getMinutes() && !this.date.getHours()) return 'midnight';
			if(!this.date.getMinutes() && this.date.getHours() == 12) return 'noon';
			return self.f() + " " + self.a();
		}
	}
});

}