我对 Angular js 非常陌生，正在使用一个简单的数据解析器项目测试一些功能 (Plunkr) 。现在，我在点击事件中的 jQuery 中访问 $scope 变量时遇到问题。我想隐藏一些元素，直到单击图像。虽然我可以在 Controller 中将 ng-hide 设置为 true，但 $scope 似乎无法在单击处理程序中工作。请帮忙。
zodiac.html
<!DOCTYPE html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<div id="container" ng-app="myApp" ng-controller="myCtrl">
<div>
<h1>What Animal Are You?</h1>
<div id="selectPicture"></div>
</div>
<div id="zodiac" ng-hide="disappear">
<h1>Your Zodiac</h1>
<div id="your-zodiac">
</div>
<br>
<h1>Avoid these Animals</h1>
<div id="hateDiv">
</div>
<br>
<h1>These Are Your Besties</h1>
<div id="loveDiv">
</div>
</div>
<script src="scripts.js"></script>
</div>
</body>
脚本.js
function d(c) {
console.log(c)
}
var app = angular.module('myApp', [])
app.controller('myCtrl', function($scope, $http) {
$http.get('zodiac.json').success(function(data) {
$scope.disappear = true //WORKS HERE
$scope.animalsData = data
angular.forEach($scope.animalsData, function(item) {
$('#selectPicture').prepend('<img src="' + item.picture + '" alt="' + item.animal + '">')
})
$('#selectPicture').on('click', 'img', function($scope) {
$scope.disappear = false //DOES NOT WORK HERE
$('#zodiac div').empty();
findZodiac(this.alt, "#your-zodiac", true);
})
function findZodiac(animal, e, test) {
angular.forEach($scope.animalsData, function(item) {
if (item.animal == animal) { //look for the right object 'item', when found, get the image
//item.picture
$(e).prepend('<img src="' + item.picture + '">')
if (test == true) {
loveHate(item.hate, "#hateDiv")
loveHate(item.love, "#loveDiv")
}
return
}
})
}
function loveHate(array, e) {
angular.forEach(array, function(value) { //loops through an array, get each animal
findZodiac(value, e, false)
})
}
});
})
最佳答案
在我看来，在使用 AngularJS 时不应该直接进行 DOM 操作。请改用 AngularJS 提供的指令。如果您这样做，这里是模板和 Controller 代码 -
zodiac.html
<!DOCTYPE html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<div id="container" ng-app="myApp" ng-controller="myCtrl">
<div>
<h1>What Animal Are You?</h1>
<div id="selectPicture">
<img ng-repeat="animal in animalsData"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}"
ng-click="disappear=false; findZodiac(animal)" />
</div>
</div>
<div id="zodiac" ng-hide="disappear">
<h1>Your Zodiac</h1>
<div id="your-zodiac">
<img ng-src="{{selectedAnimal.picture}}" alt="{{selectedAnimal.animal}}" />
</div>
<br>
<h1>Avoid these Animals</h1>
<div id="hateDiv">
<img ng-repeat="animal in selectedAnimal.hate"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}" />
</div>
<br>
<h1>These Are Your Besties</h1>
<div id="loveDiv">
<img ng-repeat="animal in selectedAnimal.love"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}" />
</div>
</div>
<script src="scripts.js"></script>
</div>
</body>
脚本.js
var app = angular.module('myApp', [])
app.controller('myCtrl', function($scope, $http) {
$scope.animalsData = [];
$scope.selectedAnimal = {};
$scope.disappear = true;
$scope.findZodiac = function(animal) {
$scope.selectedAnimal = animal;
};
$http.get('zodiac.json').success(function(data) {
$scope.animalsData = data;
});
});
关于javascript - 如何在 .on click 事件中使用 $scope ？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42060834/