Javascript JS倒数计时器,天数:小时:分钟
我找到了一个整洁的计时器,但我需要对它进行一些定制,以便为我的项目工作。我尝试更改javascript代码,使其在周末前倒计时,然后从ex:6天:23小时:59分钟重新开始,但我惨败了 我还想知道如何才能添加第三行,名为days JS代码Javascript JS倒数计时器,天数:小时:分钟,javascript,timer,countdown,Javascript,Timer,Countdown,我找到了一个整洁的计时器,但我需要对它进行一些定制,以便为我的项目工作。我尝试更改javascript代码,使其在周末前倒计时,然后从ex:6天:23小时:59分钟重新开始,但我惨败了 我还想知道如何才能添加第三行,名为days JS代码 var Clock = (function(){ var exports = function(element) { this._element = element; var html = ''; f
var Clock = (function(){
var exports = function(element) {
this._element = element;
var html = '';
for (var i=0;i<6;i++) {
html += '<span> </span>';
}
this._element.innerHTML = html;
this._slots = this._element.getElementsByTagName('span');
this._tick();
};
exports.prototype = {
_tick:function() {
var time = new Date();
this._update(this._pad(time.getHours()) + this._pad(time.getMinutes()) + this._pad(time.getSeconds()));
var self = this;
setTimeout(function(){
self._tick();
},1000);
},
_pad:function(value) {
return ('0' + value).slice(-2);
},
_update:function(timeString) {
var i=0,l=this._slots.length,value,slot,now;
for (;i<l;i++) {
value = timeString.charAt(i);
slot = this._slots[i];
now = slot.dataset.now;
if (!now) {
slot.dataset.now = value;
slot.dataset.old = value;
continue;
}
if (now !== value) {
this._flip(slot,value);
}
}
},
_flip:function(slot,value) {
// setup new state
slot.classList.remove('flip');
slot.dataset.old = slot.dataset.now;
slot.dataset.now = value;
// force dom reflow
slot.offsetLeft;
// start flippin
slot.classList.add('flip');
}
};
return exports;
}());
var i=0,clocks = document.querySelectorAll('.clock'),l=clocks.length;
for (;i<l;i++) {
new Clock(clocks[i]);
}
我将创建一个助手:
var TimeHelper = function(days, hours, minutes, callback) {
this.subtractMinute = function() {
minutes = (minutes + 60 - 1) % 60;
if (minutes === 0) {
hours = (hours + 60 - 1) % 60;
if (hours === 0) {
days = (days + 24 - 1) % 24;
if (days === 0) {
days = 24;
hours = 0;
minutes = 0;
}
}
}
callback(days, hours, minutes);
}
}
function refreshUI(days, hours, minutes) {
//refresh my ui elements
}
var timeHelper = new TimeHelper(24, 0, 0);
然后你可以每分钟调用timeHelper.subtractMinute/minute这一功能我真的不想研究你的代码,因为这会使问题变得过于复杂。如果使用我的代码,实现一个用作回调的函数,并使用setInterval函数生成一个无限循环。