javasctipt显示几分钟前、几天前等

    (function (factory) {          if (typeof define === 'function' && define.amd) {            // AMD. Register as an anonymous module.            define(['jquery'], factory);          } else {            // Browser globals            factory(jQuery);          }        }(function ($) {          $.timeago = function(timestamp) {            if (timestamp instanceof Date) {              return inWords(timestamp);            } else if (typeof timestamp === "string") {              return inWords($.timeago.parse(timestamp));            } else if (typeof timestamp === "number") {              return inWords(new Date(timestamp));            } else {              return inWords($.timeago.datetime(timestamp));            }          };          var $t = $.timeago;                  $.extend($.timeago, {            settings: {              refreshMillis: 60000,              allowFuture: false,              localeTitle: false,              cutoff: 0,              strings: {                prefixAgo: null,                prefixFromNow: null,                suffixAgo: "前",                suffixFromNow: "from now",                seconds: "1分钟",                minute: "1分钟",                minutes: "%d分钟",                hour: "1小时",                hours: "%d小时",                day: "1天",                days: "%d天",                month: "1月",                months: "%d月",                year: "1年",                years: "%d年",                wordSeparator: "",                numbers: []              }            },            inWords: function(distanceMillis) {              var $l = this.settings.strings;              var prefix = $l.prefixAgo;              var suffix = $l.suffixAgo;              if (this.settings.allowFuture) {                if (distanceMillis < 0) {                  prefix = $l.prefixFromNow;                  suffix = $l.suffixFromNow;                }              }                      var seconds = Math.abs(distanceMillis) / 1000;              var minutes = seconds / 60;              var hours = minutes / 60;              var days = hours / 24;              var years = days / 365;                      function substitute(stringOrFunction, number) {                var string = $.isFunction(stringOrFunction) ? stringOrFunction(number, distanceMillis) : stringOrFunction;                var value = ($l.numbers && $l.numbers[number]) || number;                return string.replace(/%d/i, value);              }                      var words = seconds < 45 && substitute($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 < 42 && substitute($l.day, 1) ||                days < 30 && substitute($l.days, Math.round(days)) ||                days < 45 && substitute($l.month, 1) ||                days < 365 && substitute($l.months, Math.round(days / 30)) ||                years < 1.5 && substitute($l.year, 1) ||                substitute($l.years, Math.round(years));                      var separator = $l.wordSeparator || "";              if ($l.wordSeparator === undefined) { separator = " "; }              return $.trim([prefix, words, suffix].join(separator));            },            parse: function(iso8601) {              var s = $.trim(iso8601);              s = s.replace(/\.\d+/,""); // remove milliseconds              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) {              var iso8601 = $t.isTime(elem) ? $(elem).attr("datetime") : $(elem).attr("title");              return $t.parse(iso8601);            },            isTime: function(elem) {              // jQuery's `is()` doesn't play well with HTML5 in IE              return $(elem).get(0).tagName.toLowerCase() === "time"; // $(elem).is("time");            }          });                  // functions that can be called via $(el).timeago('action')          // init is default when no action is given          // functions are called with context of a single element          var functions = {            init: function(){              var refresh_el = $.proxy(refresh, this);              refresh_el();              var $s = $t.settings;              if ($s.refreshMillis > 0) {                setInterval(refresh_el, $s.refreshMillis);              }            },            update: function(time){              $(this).data('timeago', { datetime: $t.parse(time) });              refresh.apply(this);            },            updateFromDOM: function(){              $(this).data('timeago', { datetime: $t.parse( $t.isTime(this) ? $(this).attr("datetime") : $(this).attr("title") ) });              refresh.apply(this);            }          };                  $.fn.timeago = function(action, options) {            var fn = action ? functions[action] : functions.init;            if(!fn){              throw new Error("Unknown function name '"+ action +"' for timeago");            }            // each over objects here and call the requested function            this.each(function(){              fn.call(this, options);            });            return this;          };                  function refresh() {            var data = prepareData(this);            var $s = $t.settings;                    if (!isNaN(data.datetime)) {              if ( $s.cutoff == 0 || distance(data.datetime) < $s.cutoff) {                $(this).text(inWords(data.datetime));              }            }            return this;          }                  function prepareData(element) {            element = $(element);            if (!element.data("timeago")) {              element.data("timeago", { datetime: $t.datetime(element) });              var text = $.trim(element.text());              if ($t.settings.localeTitle) {                element.attr("title", element.data('timeago').datetime.toLocaleString());              } else if (text.length > 0 && !($t.isTime(element) && element.attr("title"))) {                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());          }                  // fix for IE6 suckage          document.createElement("abbr");          document.createElement("time");        }));