angular.js小知识总结
angular-watch.html 代码如下:
<script>
var app = angular.module('app',[]);
app.controller('ctrl',function($scope){
$scope.init = {
price : 20,//单价
count : 5, //数量
money : 3 //运费
};
$scope.a = 0;
$scope.$watch('init.count',function(newVal,oldVal){
console.log(newVal + ':' + oldVal);
$scope.a = newVal > 10 ? 0: $scope.init.count * $scope.init.money;
},true);//第三个参数
$scope.sum = function(){
return $scope.init.price * $scope.init.count;
}
});
</script>
单价 : <input type="text" ng-model="init.price"/><br /><br />
数量 : <input type="number" ng-model="init.count"/><br /><br />
总价 : {{sum()}}<br /><br />
运费 : {{a}}angular-filter 代码如下:
<script>
var app = angular.module('app',[]);
app.run(['$routeScope,$filter',function($routeScope,$filter){
$routeScope.a = 12;
$routeScope.name = $filter('number')(123456789);
}])
</script>angula-drag 代码如下:
<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="UTF-8">
<title></title>
<style>
#box {
width: 100px;
height: 100px;
background: salmon;
position: absolute;
top: 0;
left: 0;
}
</style>
</head>
<body>
<script src="js/jquery.3.1.1.js"></script>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('app', []);
app.directive('myDrag', function() {
return {
link: function(scope, element, attr) {
element.on('mousedown', function(ev) {
var This = $(this);
var disX = ev.clientX - $(this).offset().left;
var disY = ev.clientY - $(this).offset().top;
});
$(document).on('mousemove', function() {
This.css({
left: ev.clientX - disX,
top: ev.clientY - disY
})
})
$(document).on('mouseup',function(){
$(document).off();
})
},
restrict: 'A'
}
})
</script>
<div my-drag></div>
</body>
</html>angular-disabled 代码如下:
<script>
var app = angular.module('app',[]);
var timer;
app.controller('ctrl',function($scope,$interval){
$scope.iNum = 5;
$scope.isDisabled = true;
timer = $interval(function(){
$scope.iNum--;
if ($scope.iNum == 0) {
$interval.cancel(timer);
//取消定时器
$scope.isDisabled = false;
}
},1000);
});
</script>
<div ng-controller="ctrl">
<input type="button" ng-disabled="isDisabled" value="{{iNum}}"/>
</div>angular-directive 代码如下:
<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="utf-8" />
<title></title>
<style>
p{
width: 300px;
height: 300px;
border: 1px solid saddlebrown;
display: none;
}
.on{
background: red;
}
</style>
<script src="js/angular.min.js"></script>
<script src="js/jquery-1.9.1.js"></script>
<script>
var app = angular.module('app',[]);
app.controller('ctrl',function($scope){
$scope.data = [
{title:'新闻',"con":'新闻'},
{title:'娱乐',"con":'娱乐'},
{title:'体育',"con":'体育'}
];
$scope.data2 = [
{title:'八卦',"con":'八卦'},
{title:'军事',"con":'军事'},
{title:'农业',"con":'农业'}
];
});
app.directive('myTab',function(){
return{
link:function(scope,element,attr){
element.delegate('input','click',function(){
$(this).attr('class','on').siblings('input').attr('class','');
$(this).siblings('p').eq($(this).index()).show().siblings('p').hide();
});
},
//element.delegate : 事件委托
restrict:'ECMA',
replace:true,
//scope:true,
scope:{
myId : '@', //随便起个名字
//@ : 针对字符串
//= : 针对数据和变量
myData:'='
},//隔离控制器0
templateUrl:'tpl.html'
}
})
</script>
</head>
<body ng-controller="ctrl">
<div>
<my-tab my- my-data="data"></my-tab>
<my-tab my- my-data="data2">{{name}}</my-tab>
</div>
</body>
</html>angular-anchorScroll 代码如下:
<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="UTF-8">
<title></title>
<style>
#box div{
width: 200px;
height: 300px;
border: 1px solid red;
margin-bottom: 20px;
}
#box ul{
position: fixed;
top: 20px;
right: 20px;
}
#box ul li{
width: 150px;
height: 30px;
border: 1px solid red;
text-align: center;
list-style: none;
margin-top: -1px;
}
</style>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('app',[]);
app.controller('ctrl',function($scope,$location,$anchorScroll){
$scope.arr = [1,2,3,4,5,6];
$scope.show = function(id){
$location.hash(id);
//hash()设置地址栏里的信息,可以设置也可以获取
$anchorScroll();
//清空上次执行的
//在执行一次
}
})
</script>
</head>
<body ng-controller="ctrl">
<div >
<ul>
<li ng-repeat="id in arr" ng-click="show('div' + id)">div{{id}}</li>
</ul>
<div ng-repeat="id in arr" >div{{id}}</div>
</div>
</body>
</html>angular-bootstrap 代码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
p{
width: 200px;
height: 200px;
border: 1px solid salmon;
text-align: center;
line-height: 200px;
}
</style>
</head>
<body>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('app1',[]);
var app = angular.module('app2',[]);
app.controller('ctrl1',function($scope){
$scope.a = 30;
});
app.controller('ctrl2',function($scope){
$scope.b = 20;
});
var oDiv = document.getElementsByTagName('div');
angular.element(document).on('click',function(){
angular.bootstrap(oDiv[0],['app1']);
angular.bootstrap(oDiv[1],['app2']);
//参数 模块定义给谁,模块名
//手动开启angular应用模式
})
</script>
<div ng-controller="ctrl1">{{a}}</div>
<div ng-controller="ctrl2">{{b}}</div>
</body>
</html>cachFactory 代码如下:
<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('app',[]);
app.controller('ctrl',function($scope,$cacheFactory){
var cache = $cacheFactory('myCache',{capacity:3});
//capacity:2 限制size的个数
//默认删除第一条
cache.put('name','lily');
cache.put('age','20');
cache.put('sex','women');
//cache.remove('name');
//info() 当前这条详细信息
console.log(cache.get('name'));
//console.log(cache.info());
})
</script>
</head>
<body ng-controller="ctrl">
</body>
</html>$loaction
<!DOCTYPE html>
<html ng-app="mk">
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/angular.min.js"></script>
<script>
var app = angular.module('mk',[]);
app.controller('ctrl1',function($scope,$location){
$scope.url = 'http://www.baidu.com#/path/abd?news=123456&user=name&pass=123';
var a = $location.hash('hi');
var b = $location.search('name=rose');
console.log($location.url());//相对路径 : /path/abd?news=123456&user=name&pass=123
console.log($location.absUrl());//绝对路径 : http://127.0.0.1:8020/%E5%A4%8D%E4%B9%A0/$location.html#/path/abd?news=123456&user=name&pass=123
console.log($location.host());//主机名 : 127.0.0.1
console.log($location.port());//端口号 : 8020
console.log($location.search());//数据 : Object {news: "123456", user: "name", pass: "123"}
console.log($location.path());//盘符 : /path/abd
console.log($location.protocol());//协议 : http
})
</script>
</head>
<body ng-controller="ctrl1">
</body>
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