Javascript ng-mouseover 上的 Angular JS 更改类
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Angular JS Change Class on ng-mouseover
提问by Staafsak
Am trying to add a class (blue) to a button when ever you hover the button using AngularJS.
当您使用 AngularJS 悬停按钮时，我正在尝试向按钮添加一个类（蓝色）。
HTML
HTML
<button class="btn-add-optimize" ng-mouseover="hover(iets)">Add and Optimize</button>
AngularJS
AngularJS
$scope.hover = function (iets) {
var Dit = this;
Dit.add("blue");
};
Anyone can help me out? Preferable a small example, it would be very appreciated!
任何人都可以帮助我吗？最好是一个小例子，将不胜感激！
回答by Collin Allen
I've used something like this with success:
我已经成功地使用了这样的东西：
<button
ng-class="{'some-class':hovering}"
ng-mouseenter="hovering=true"
ng-mouseleave="hovering=false">Add and Optimize</button>
Entering and leaving the button toggles $scope.hovering, and the application of some-classis contingent on the $scope.hoveringscope variable being true.
进入和离开按钮切换$scope.hovering， 的应用some-class取决于$scope.hovering范围变量是true。
回答by Ercan
<button
ng-class="{'some-class':hovering}"
ng-mouseenter="hovering=true"
ng-mouseleave="hovering=false">Add and Optimize</button>
You should use this form : ng-class
你应该使用这种形式：ng-class
回答by QauseenMZ
For Angular 8, this works for me:
对于 Angular 8，这对我有用：
<nav id="sidebar" [class]="!hovered ? 'active': ''" (mouseenter)='hovered=true' (mouseleave)="hovered=false">
