Angular1.0与Vue循环指令的区别
1、获取ng-repeat和v-for循环生成的节点
比较：
- ng-repeat生成的节点不能直接获取
解决方案：自定义一个指令监听ng-repeat渲染完再执行相应的DOM操作
- v-for生成的节点可以直接获取
angular
<!DOCTYPE html>
<html ng-app="myModule">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body ng-controller="myController">
<ul>
<li ng-repeat="item in arr" repeat-finish="renderFinish()">{{item}}</li>
</ul>
<script src="js/angular.js"></script>
<script>
var app = angular.module('myModule', ['ng']);
app.controller('myController', function($scope, $http){
$scope.name = 'mary';
$scope.arr = [1, 3, 4, 5];
console.log(document.querySelectorAll('li').length); // 0
$scope.renderFinish = function() {
console.log('渲染完成之后的操作',document.querySelectorAll('li').length); // 4
}
})
// 自定义一个repeat-finish的指令，监听ng-repeat渲染完成后执行的脚步
app.directive('repeatFinish', function() {
return {
link: function(scope, element, attr) {
if (scope.$last == true) {
scope.$eval(attr.repeatFinish);
}
}
}
})
</script>
</body>
</html>
vue
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
</style>
</head>
<body>
<ul class="box">
<li v-for="item in arr">{{item}}</li>
</ul>
<script src="js/vue.js"></script>
<script>
var mes = {
arr: [1, 3, 4, 5]
}
new Vue({
el: '.box',
data: mes
})
console.log(document.querySelectorAll('li').length); // 4
</script>
</body>
</html>
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