下面是jQuery的一个非常好用的时间插件,非常类似于他们在这里使用的SO。对我来说问题是它用它来转换时间。
<time class="timeago" datetime="2008-07-17T09:24:17Z">July 17, 2008</time>
除了我在UTC时间戳上存储我的网站时间而不是格式化时间之外,那会很棒,有没有办法将这样的东西转换为使用时间戳?我知道在PHP中我可以将我的时间戳转换为这种格式,但在PHP的1页上转换很多次似乎有些过分。我可能是错的,其他人在jquery中这样做但是从真正的时间戳?
此外,我目前在一个网站上用PHP显示“2小时4分钟前”,但是为了这个而不是PHP,最好使用javascript吗?
/*
* timeago: a jQuery plugin, version: 0.8.1 (2010-01-04)
* @requires jQuery v1.2.3 or later
*
* Timeago is a jQuery plugin that makes it easy to support automatically
* updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago").
*
* For usage and examples, visit:
* http://timeago.yarp.com/
* Copyright (c) 2008-2010, Ryan McGeary (ryanonjavascript -[at]- mcgeary [*dot*] org)
*/
(function($) {
$.timeago = function(timestamp) {
if (timestamp instanceof Date) return inWords(timestamp);
else if (typeof timestamp == "string") return inWords($.timeago.parse(timestamp));
else return inWords($.timeago.datetime(timestamp));
};
var $t = $.timeago;
$.extend($.timeago, {
settings: {
refreshMillis: 60000,
allowFuture: false,
strings: {
prefixAgo: null,
prefixFromNow: null,
suffixAgo: "ago",
suffixFromNow: "from now",
ago: null, // DEPRECATED, use suffixAgo
fromNow: null, // DEPRECATED, use suffixFromNow
seconds: "less than a minute",
minute: "about a minute",
minutes: "%d minutes",
hour: "about an hour",
hours: "about %d hours",
day: "a day",
days: "%d days",
month: "about a month",
months: "%d months",
year: "about a year",
years: "%d years"
}
},
inWords: function(distanceMillis) {
var $l = this.settings.strings;
var prefix = $l.prefixAgo;
var suffix = $l.suffixAgo || $l.ago;
if (this.settings.allowFuture) {
if (distanceMillis < 0) {
prefix = $l.prefixFromNow;
suffix = $l.suffixFromNow || $l.fromNow;
}
distanceMillis = Math.abs(distanceMillis);
}
var seconds = distanceMillis / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
var years = days / 365;
var words = seconds < 45 && substitute($l.seconds, Math.round(seconds)) ||
seconds < 90 && substitute($l.minute, 1) ||
minutes < 45 && substitute($l.minutes, Math.round(minutes)) ||
minutes < 90 && substitute($l.hour, 1) ||
hours < 24 && substitute($l.hours, Math.round(hours)) ||
hours < 48 && substitute($l.day, 1) ||
days < 30 && substitute($l.days, Math.floor(days)) ||
days < 60 && substitute($l.month, 1) ||
days < 365 && substitute($l.months, Math.floor(days / 30)) ||
years < 2 && substitute($l.year, 1) ||
substitute($l.years, Math.floor(years));
return $.trim([prefix, words, suffix].join(" "));
},
parse: function(iso8601) {
var s = $.trim(iso8601);
s = s.replace(/-/,"/").replace(/-/,"/");
s = s.replace(/T/," ").replace(/Z/," UTC");
s = s.replace(/([\+-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
return new Date(s);
},
datetime: function(elem) {
// jQuery's `is()` doesn't play well with HTML5 in IE
var isTime = $(elem).get(0).tagName.toLowerCase() == 'time'; // $(elem).is('time');
var iso8601 = isTime ? $(elem).attr('datetime') : $(elem).attr('title');
return $t.parse(iso8601);
}
});
$.fn.timeago = function() {
var self = this;
self.each(refresh);
var $s = $t.settings;
if ($s.refreshMillis > 0) {
setInterval(function() { self.each(refresh); }, $s.refreshMillis);
}
return self;
};
function refresh() {
var data = prepareData(this);
if (!isNaN(data.datetime)) {
$(this).text(inWords(data.datetime));
}
return this;
}
function prepareData(element) {
element = $(element);
if (element.data("timeago") === undefined) {
element.data("timeago", { datetime: $t.datetime(element) });
var text = $.trim(element.text());
if (text.length > 0) element.attr("title", text);
}
return element.data("timeago");
}
function inWords(date) {
return $t.inWords(distance(date));
}
function distance(date) {
return (new Date().getTime() - date.getTime());
}
function substitute(stringOrFunction, value) {
var string = $.isFunction(stringOrFunction) ? stringOrFunction(value) : stringOrFunction;
return string.replace(/%d/i, value);
}
// fix for IE6 suckage
document.createElement('abbr');
document.createElement('time');
})(jQuery);
答案 0 :(得分:8)
我遇到了同样的问题。我正在使用从PHP生成的Unix时间戳,因此我决定快速破解并扩展jQuery timeago的解析功能以额外处理时间戳。奇迹般有效。只需在jquery.timeago.js文件中的第79行附近查找Parse函数,并替换为以下内容:
parse: function(iso8601) {
if ((iso8601 - 0) == iso8601 && iso8601.length > 0) { // Checks if iso8601 is a unix timestamp
var s = new Date(iso8601);
if (isNaN(s.getTime())) { // Checks if iso8601 is formatted in milliseconds
var s = new Date(iso8601 * 1000); //if not, add milliseconds
}
return s;
}
var s = $.trim(iso8601);
s = s.replace(/-/,"/").replace(/-/,"/");
s = s.replace(/T/," ").replace(/Z/," UTC");
s = s.replace(/([\+-]\d\d)\:?(\d\d)/," $1$2"); // -04:00 -> -0400
return new Date(s);
},
答案 1 :(得分:3)
以下是使用Unix时间戳的JavaScript中的内容。
var d1;
var d2;
d1 = (new Date()).getTime(); setTimeout( function() { d2 = (new Date()).getTime(); }, 5000 );
var secondsElapsed = (d2 - d1) / 1000;
secondsElapsed; // 5 seconds
现在,您可以将时间戳存储在与“timeago”函数相同的范围内的JavaScript变量中,也可以将其存储在HTML元素中。如上所述,time
元素是HTML 5元素。你可以这样做:
<p class="timestamp" style="display: none;">123456</p>
那么也许你有一个评论项目,如:
<div class="comment">
<p>Lorem ipsum et dolor...</p>
<p class="timestamp" style="display: none;">123456</p>
</div>
然后你可以通过(假设jQuery,因为你提到它)获得评论的时间戳:
var tstamps = $('.comment .timestamp'); // array of comment timestamps
var timeago = ( (new Date()).getTime() - tstamps[0].html() ) / 1000;
有点hackish,但它会起作用(如果我做对了)。
答案 2 :(得分:2)
我喜欢使用DateJS.com这是一个日期/时间javascript库。你可以做这样很酷的事情(2小时前在<span id='myfield'></span>
中显示):
$('#myfield').text( (2).hours().ago().toString("HH:mm") );
答案 3 :(得分:-1)
使用两者会更好,但没有必要使用JS来使其动态化。
事实上,我只是在Facebook上看到过这种行为。
另外,您是否清楚<time>
标记是否为HTML5?它可能会产生一些不兼容性。