计时器未绑定 AngularJS 中的 DOM 值
Timer not binding DOM value in AngularJS
我是一名后端开发人员,正在努力通过比较两种不同的日期格式来制作计时器。脚本的这一部分工作得很好,但每当我尝试进行递归调用时,没有任何约束。
我几乎尝试了所有方法,从将其传递到函数、使用 $interval、setInterval 等等。主要原因是我无法获取其循环的值,无法绑定到我的 DOM.
这是我的一些代码。这里我设置了 countDown() 函数的所有变量。
$scope.timer.list = {};
$scope.timer.date = new Date();
$scope.timer.list.D = '00';
$scope.timer.list.M = '00';
$scope.timer.list.Y = '00';
$scope.timer.list.h = '00';
$scope.timer.list.m = '00';
$scope.timer.list.s = '00';
$scope.begin = {};
$scope.begin.date = {};
$scope.begin.timer = {};
$scope.counter = {
show : false,
text : '00:00'
};
setInterval(function() {
$scope.obj = {
show : $scope.countDown($scope.privateshowcase.begin_at).show,
text : $scope.countDown($scope.privateshowcase.begin_at).text
}
$scope.counter = $scope.obj;
}, 1000);
那么,这里是函数:
$scope.countDown = function(begin) {
$scope.timer.date = new Date();
$scope.timer.list.D = $filter('date')($scope.timer.date, 'dd');
$scope.timer.list.M = $filter('date')($scope.timer.date, 'MM');
$scope.timer.list.Y = $filter('date')($scope.timer.date, 'yyyy');
$scope.timer.list.h = $filter('date')($scope.timer.date, 'HH');
$scope.timer.list.m = $filter('date')($scope.timer.date, 'mm');
$scope.timer.list.s = $filter('date')($scope.timer.date, 'ss');
$scope.begin.full = begin.split(" ");
$scope.begin.date = $scope.begin.full[0].split("-");
$scope.begin.timer = $scope.begin.full[1].split(":");
$scope.begin.D = $scope.begin.date[2];
$scope.begin.M = $scope.begin.date[1];
$scope.begin.Y = $scope.begin.date[0];
$scope.begin.h = $scope.begin.timer[0];
$scope.begin.m = $scope.begin.timer[1];
$scope.begin.s = $scope.begin.timer[2];
if($scope.timer.list.Y == $scope.begin.Y) {
if($scope.timer.list.M == $scope.begin.M) {
if($scope.timer.list.D == $scope.begin.D) {
$scope.counter.diff_h = $scope.timer.list.h - $scope.begin.h;
if($scope.counter.diff_h == 0 || $scope.counter.diff_h == -1) {
if($scope.counter.diff_h == 0) {
if($scope.timer.list.m > $scope.begin.m) {
$scope.counter.show = false;
$scope.counter.text = false;
} else if ($scope.timer.list.m <= $scope.begin.m) {
$scope.counter.show = true;
$scope.counter.diff_m = $scope.begin.m - $scope.timer.list.m;
if($scope.counter.diff_m <= 30) {
$scope.counter.diff_s = 60 - $scope.timer.list.s;
if($scope.counter.diff_s == 60) {
$scope.counter.s = "00";
$scope.counter.diff_m_f = $scope.counter.diff_m + 1;
} else if($scope.counter.diff_s >= 1 && $scope.counter.diff_s <= 9) {
$scope.counter.s = "0" + $scope.counter.diff_s;
$scope.counter.diff_m_f = $scope.counter.diff_m;
} else {
$scope.counter.s = $scope.counter.diff_s;
$scope.counter.diff_m_f = $scope.counter.diff_m;
}
if($scope.counter.diff_m_f >= 1 && $scope.counter.diff_m_f <= 9) {
$scope.counter.m = "0" + $scope.counter.diff_m_f;
} else {
$scope.counter.m = $scope.counter.diff_m_f;
}
}
$scope.counter.text = $scope.counter.m + ":" +$scope.counter.s;
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else if ($scope.counter.diff_h == -1) {
$scope.counter.diff_timer = $scope.timer.m - 60;
$scope.counter.diff_m = $scope.begin.m - $scope.counter.diff_timer;
if($scope.counter.diff_m > 30) {
$scope.counter.show = false;
$scope.counter.text = false;
} else if($scope.counter.diff_m <= 30) {
$scope.counter.show = true;
$scope.counter.diff_timer_s = $scope.timer.s - 60;
if($scope.counter.diff_timer_s == 60) {
$scope.counter.s = "00";
$scope.counter.m = $scope.counter.diff_m + 1;
} else if($scope.counter.s >= 1 && $scope.counter.s <= 9) {
$scope.counter.s = "0" + $scope.counter.diff_timer_s;
$scope.counter.m = $scope.counter.diff_m;
} else {
$scope.counter.s = $scope.counter.diff_timer_s;
$scope.counter.m = $scope.counter.diff_m;
}
$scope.counter.text = $scope.counter.m + ":" +$scope.counter.s;
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
return $scope.counter = {
show : $scope.counter.show,
text : $scope.counter.text
};
}
'begin' 是:'YYYY/MM/DAY HH:MM:SS'
可能是我的思路不太好,反正我有一个非常实用的定时器,可以把每一个1到9替换成01到09,把60换成00,可以比较2个不同的时间。
我认为你把事情复杂化了一点。我想出了一个简单的 countDown
组件,它是在 angularjs 1.6.0
中制作的(它也可以通过 angularjs 旧版本的指令来完成),它将输入日期与 now
日期进行比较.
只要不破坏日期格式,您就可以尝试输入和更改日期以查看组件发生的变化。
Note on dates: simple way to compare dates:
var date0 = new Date("2017-09-12T14:45:00.640Z");
var date1 = new Date("2017-09-13T14:45:00.640Z");
var dateDiff = new Date(date1.getTime() - date0.getTime());
// "1970-01-02T00:00:00.000Z"
Although dateDiff
looks weird, it's basically one day from the zero date 1970-01-01T00:00:00.000Z
.
鉴于此,您只需让 angularjs 施展魔法(或者可能是把戏)。
{{ dateDiff | date:"d \'days\' hh:mm:ss" }}
Besides, if you don't want to work with dates in the natural form of javascript, you can use angularjs-moment which provide you date and time utility from momentjs regardless of javascript dates pitfalls.
这是工作代码:
angular
.module('app', [])
.run(function($rootScope) {
$rootScope.countDownToDate = new Date().addDays(2);
})
.component('countDown', {
template: '{{ $ctrl.timer | date:"d \'days\' hh:mm:ss" }}',
bindings: {
to: '<'
},
controller: function CountDownCtrl($interval) {
var $this = this;
this.$onInit = function() {
$interval($this.setTime, 1000);
};
$this.setTime = function() {
$this.timer = new Date(new Date($this.to).getTime() - new Date().getTime());
}
}
});
// bootstrap the app
angular.element(function() {
angular.bootstrap(document, ['app']);
});
// extension to add days on date
Date.prototype.addDays = function(days) {
var dat = new Date(this.valueOf());
dat.setDate(dat.getDate() + days);
return dat;
};
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.0/angular.js"></script>
<div>
<center>
<h1>
<count-down to="countDownToDate" />
</h1>
<label for="countDownToDate">To Date</label>
<input type="datetime" name="countDownToDate" ng-model="countDownToDate">
</center>
</div>
我是一名后端开发人员,正在努力通过比较两种不同的日期格式来制作计时器。脚本的这一部分工作得很好,但每当我尝试进行递归调用时,没有任何约束。
我几乎尝试了所有方法,从将其传递到函数、使用 $interval、setInterval 等等。主要原因是我无法获取其循环的值,无法绑定到我的 DOM.
这是我的一些代码。这里我设置了 countDown() 函数的所有变量。
$scope.timer.list = {};
$scope.timer.date = new Date();
$scope.timer.list.D = '00';
$scope.timer.list.M = '00';
$scope.timer.list.Y = '00';
$scope.timer.list.h = '00';
$scope.timer.list.m = '00';
$scope.timer.list.s = '00';
$scope.begin = {};
$scope.begin.date = {};
$scope.begin.timer = {};
$scope.counter = {
show : false,
text : '00:00'
};
setInterval(function() {
$scope.obj = {
show : $scope.countDown($scope.privateshowcase.begin_at).show,
text : $scope.countDown($scope.privateshowcase.begin_at).text
}
$scope.counter = $scope.obj;
}, 1000);
那么,这里是函数:
$scope.countDown = function(begin) {
$scope.timer.date = new Date();
$scope.timer.list.D = $filter('date')($scope.timer.date, 'dd');
$scope.timer.list.M = $filter('date')($scope.timer.date, 'MM');
$scope.timer.list.Y = $filter('date')($scope.timer.date, 'yyyy');
$scope.timer.list.h = $filter('date')($scope.timer.date, 'HH');
$scope.timer.list.m = $filter('date')($scope.timer.date, 'mm');
$scope.timer.list.s = $filter('date')($scope.timer.date, 'ss');
$scope.begin.full = begin.split(" ");
$scope.begin.date = $scope.begin.full[0].split("-");
$scope.begin.timer = $scope.begin.full[1].split(":");
$scope.begin.D = $scope.begin.date[2];
$scope.begin.M = $scope.begin.date[1];
$scope.begin.Y = $scope.begin.date[0];
$scope.begin.h = $scope.begin.timer[0];
$scope.begin.m = $scope.begin.timer[1];
$scope.begin.s = $scope.begin.timer[2];
if($scope.timer.list.Y == $scope.begin.Y) {
if($scope.timer.list.M == $scope.begin.M) {
if($scope.timer.list.D == $scope.begin.D) {
$scope.counter.diff_h = $scope.timer.list.h - $scope.begin.h;
if($scope.counter.diff_h == 0 || $scope.counter.diff_h == -1) {
if($scope.counter.diff_h == 0) {
if($scope.timer.list.m > $scope.begin.m) {
$scope.counter.show = false;
$scope.counter.text = false;
} else if ($scope.timer.list.m <= $scope.begin.m) {
$scope.counter.show = true;
$scope.counter.diff_m = $scope.begin.m - $scope.timer.list.m;
if($scope.counter.diff_m <= 30) {
$scope.counter.diff_s = 60 - $scope.timer.list.s;
if($scope.counter.diff_s == 60) {
$scope.counter.s = "00";
$scope.counter.diff_m_f = $scope.counter.diff_m + 1;
} else if($scope.counter.diff_s >= 1 && $scope.counter.diff_s <= 9) {
$scope.counter.s = "0" + $scope.counter.diff_s;
$scope.counter.diff_m_f = $scope.counter.diff_m;
} else {
$scope.counter.s = $scope.counter.diff_s;
$scope.counter.diff_m_f = $scope.counter.diff_m;
}
if($scope.counter.diff_m_f >= 1 && $scope.counter.diff_m_f <= 9) {
$scope.counter.m = "0" + $scope.counter.diff_m_f;
} else {
$scope.counter.m = $scope.counter.diff_m_f;
}
}
$scope.counter.text = $scope.counter.m + ":" +$scope.counter.s;
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else if ($scope.counter.diff_h == -1) {
$scope.counter.diff_timer = $scope.timer.m - 60;
$scope.counter.diff_m = $scope.begin.m - $scope.counter.diff_timer;
if($scope.counter.diff_m > 30) {
$scope.counter.show = false;
$scope.counter.text = false;
} else if($scope.counter.diff_m <= 30) {
$scope.counter.show = true;
$scope.counter.diff_timer_s = $scope.timer.s - 60;
if($scope.counter.diff_timer_s == 60) {
$scope.counter.s = "00";
$scope.counter.m = $scope.counter.diff_m + 1;
} else if($scope.counter.s >= 1 && $scope.counter.s <= 9) {
$scope.counter.s = "0" + $scope.counter.diff_timer_s;
$scope.counter.m = $scope.counter.diff_m;
} else {
$scope.counter.s = $scope.counter.diff_timer_s;
$scope.counter.m = $scope.counter.diff_m;
}
$scope.counter.text = $scope.counter.m + ":" +$scope.counter.s;
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
} else {
$scope.counter.show = false;
$scope.counter.text = false;
}
return $scope.counter = {
show : $scope.counter.show,
text : $scope.counter.text
};
}
'begin' 是:'YYYY/MM/DAY HH:MM:SS'
可能是我的思路不太好,反正我有一个非常实用的定时器,可以把每一个1到9替换成01到09,把60换成00,可以比较2个不同的时间。
我认为你把事情复杂化了一点。我想出了一个简单的 countDown
组件,它是在 angularjs 1.6.0
中制作的(它也可以通过 angularjs 旧版本的指令来完成),它将输入日期与 now
日期进行比较.
只要不破坏日期格式,您就可以尝试输入和更改日期以查看组件发生的变化。
Note on dates: simple way to compare dates:
var date0 = new Date("2017-09-12T14:45:00.640Z"); var date1 = new Date("2017-09-13T14:45:00.640Z"); var dateDiff = new Date(date1.getTime() - date0.getTime()); // "1970-01-02T00:00:00.000Z"
Although
dateDiff
looks weird, it's basically one day from the zero date1970-01-01T00:00:00.000Z
.
鉴于此,您只需让 angularjs 施展魔法(或者可能是把戏)。
{{ dateDiff | date:"d \'days\' hh:mm:ss" }}
Besides, if you don't want to work with dates in the natural form of javascript, you can use angularjs-moment which provide you date and time utility from momentjs regardless of javascript dates pitfalls.
这是工作代码:
angular
.module('app', [])
.run(function($rootScope) {
$rootScope.countDownToDate = new Date().addDays(2);
})
.component('countDown', {
template: '{{ $ctrl.timer | date:"d \'days\' hh:mm:ss" }}',
bindings: {
to: '<'
},
controller: function CountDownCtrl($interval) {
var $this = this;
this.$onInit = function() {
$interval($this.setTime, 1000);
};
$this.setTime = function() {
$this.timer = new Date(new Date($this.to).getTime() - new Date().getTime());
}
}
});
// bootstrap the app
angular.element(function() {
angular.bootstrap(document, ['app']);
});
// extension to add days on date
Date.prototype.addDays = function(days) {
var dat = new Date(this.valueOf());
dat.setDate(dat.getDate() + days);
return dat;
};
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.0/angular.js"></script>
<div>
<center>
<h1>
<count-down to="countDownToDate" />
</h1>
<label for="countDownToDate">To Date</label>
<input type="datetime" name="countDownToDate" ng-model="countDownToDate">
</center>
</div>