这里汇总了js实现时间显示几天前、几小时前或者几分钟前的常见方法。分享给大家供大家参考。具体如下：
方法一：
个人做法是保存时间戳，然后在前端用jq插件做转换，比如 smart-time-ago
方法二：
（通过freemarker模板）如果用freemarker模板可以这样写，别的模板类推 根据自己的意愿修改条件和输出，把你的datetime传进去即可
<#assign ct = (.now?long-datetime?long)/1000>
<#if ct gte 31104000><#--n年前-->${(ct/31104000)?int}年前
<#t><#elseif ct gte 2592000><#--n月前-->${(ct/2592000)?int}个月前
<#t><#elseif ct gte 86400*2><#--n天前-->${(ct/86400)?int}天前
<#t><#elseif ct gte 86400><#--1天前-->昨天
<#t><#elseif ct gte 3600><#--n小时前-->${(ct/3600)?int}小时前
<#t><#elseif ct gte 60><#--n分钟前-->${(ct/60)?int}分钟前
<#t><#elseif ct gt 0><#--n秒前-->${ct?int}秒前
<#t><#else>刚刚
方法三：
找到一个专门的插件PrettyTime
方法四：
year) {
r = (diff / year);
return r + "年前";
}
if (diff > month) {
r = (diff / month);
return r + "个月前";
}
if (diff > day) {
r = (diff / day);
return r + "天前";
}
if (diff > hour) {
r = (diff / hour);
return r + "个小时前";
}
if (diff > minute) {
r = (diff / minute);
return r + "分钟前";
}
return "刚刚";
}
方法五：
使用js插件：（原版的timeago.js）
0) {
if (this.options.dir === "up") {
filter = ":first";
} else if (this.options.dir === "down") {
filter = ":last";
}
newestTimeSrc = this.$element.findAndSelf(this.options.selector).filter(filter).attr(this.options.attr);
newestTime = this.parse(newestTimeSrc);
newestTimeInMinutes = this.getTimeDistanceInMinutes(newestTime);
if (newestTimeInMinutes >= 0 && newestTimeInMinutes <= 44 && this.startInterval !== 60000) {
this.startInterval = 60000;
return this.restartTimer();
} else if (newestTimeInMinutes >= 45 && newestTimeInMinutes <= 89 && this.startInterval !== 60000 * 22) {
this.startInterval = 60000 * 22;
return this.restartTimer();
} else if (newestTimeInMinutes >= 90 && newestTimeInMinutes <= 2519 && this.startInterval !== 60000 * 30) {
this.startInterval = 60000 * 30;
return this.restartTimer();
} else if (newestTimeInMinutes >= 2520 && this.startInterval !== 60000 * 60 * 12) {
this.startInterval = 60000 * 60 * 12;
return this.restartTimer();
}
}
};
TimeAgo.prototype.timeAgoInWords = function(timeString) {
var absolutTime;
absolutTime = this.parse(timeString);
return this.distanceOfTimeInWords(absolutTime) + (this.options.lang.suffix);
};
TimeAgo.prototype.parse = function(iso8601) {
var timeStr;
timeStr = $.trim(iso8601);
timeStr = timeStr.replace(/\.\d\d\d+/,"");
timeStr = timeStr.replace(/-/,"/").replace(/-/,"/");
timeStr = timeStr.replace(/T/," ").replace(/Z/," UTC");
timeStr = timeStr.replace(/([\+\-]\d\d)\:?(\d\d)/," $1$2");
return new Date(timeStr);
};
TimeAgo.prototype.getTimeDistanceInMinutes = function(absolutTime) {
var timeDistance;
timeDistance = new Date().getTime() - absolutTime.getTime();
return Math.round((Math.abs(timeDistance) / 1000) / 60);
};
TimeAgo.prototype.distanceOfTimeInWords = function(absolutTime) {
var dim;
dim = this.getTimeDistanceInMinutes(absolutTime);
if (dim === 0) {
return "" + this.options.lang.prefixes.lt + " " + this.options.lang.units.minute;
} else if (dim === 1) {
return "1 " + this.options.lang.units.minute;
} else if (dim >= 2 && dim <= 44) {
return "" + dim + " " + this.options.lang.units.minutes;
} else if (dim >= 45 && dim <= 89) {
return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.hour;
} else if (dim >= 90 && dim <= 1439) {
return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 60)) + " " + this.options.lang.units.hours;
} else if (dim >= 1440 && dim <= 2519) {
return "1 " + this.options.lang.units.day;
} else if (dim >= 2520 && dim <= 43199) {
return "" + (Math.round(dim / 1440)) + " " + this.options.lang.units.days;
} else if (dim >= 43200 && dim <= 86399) {
return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.month;
} else if (dim >= 86400 && dim <= 525599) {
return "" + (Math.round(dim / 43200)) + " " + this.options.lang.units.months;
} else if (dim >= 525600 && dim <= 655199) {
return "" + this.options.lang.prefixes.about + " 1 " + this.options.lang.units.year;
} else if (dim >= 655200 && dim <= 914399) {
return "" + this.options.lang.prefixes.over + " 1 " + this.options.lang.units.year;
} else if (dim >= 914400 && dim <= 1051199) {
return "" + this.options.lang.prefixes.almost + " 2 " + this.options.lang.units.years;
} else {
return "" + this.options.lang.prefixes.about + " " + (Math.round(dim / 525600)) + " " + this.options.lang.units.years;
}
};
return TimeAgo;
})();
$.fn.timeago = function(options) {
if (options == null) options = {};
return this.each(function() {
var $this,data;
$this = $(this);
data = $this.data("timeago");
if (!data) $this.data("timeago",new TimeAgo(this,options));
if (typeof options === 'string') return data[options]();
});
};
$.fn.findAndSelf = function(selector) {
return this.find(selector).add(this.filter(selector));
};
$.fn.timeago.Constructor = TimeAgo;
$.fn.timeago.defaults = {
selector: 'time.timeago',attr: 'datetime',dir: 'up',lang: {
units: {
second: "second",seconds: "seconds",minute: "minute",minutes: "minutes",hour: "hour",hours: "hours",day: "day",days: "days",month: "month",months: "months",year: "year",years: "years"
},prefixes: {
lt: "less than a",about: "about",over: "over",almost: "almost"
},suffix: ' ago'
}
};
}).call(this);
使用js插件：（改装版（简哟版）timeago.js）中文的
-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");
}));
希望本文所述对大家的javascript程序设计有所帮助。
