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Ng-class - remove a class after adding it to the DOM

I use animate.css to create an animation on a single element. I had a problem deleting a class after adding it.

HTML

 <form ng-submit="animate()" ng-controller="AnimateCtrl">
    <input type='text' ng-model="some">
 </form>
 <div ng-class="{shake:animation.shake}" class="animated">

Angular

myapp.controller(function($scope){
     var animation = $scope.animation = {
           shake:false
     };

     $scope.animate=function(){

         //remove the class first and add it back again

          animation.shake = false

          animation.shake = true


     };

})

How to remove a class after animation?

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1 answer

Changing the value of the .shake animation to false removes the class. Changing it to true adds a class. This is the foundation of how the ng class works. If you want your animation to run at a certain interval, you need to switch using $ timeout. It's hard to tell by your code. The following example deletes a class using $ timeout, which runs after 2000 milliseconds.

http://plnkr.co/edit/Wtxkrv2nIqSLNfEsvCyI?p=preview

CSS  .red {      ;   }

HTML

<!DOCTYPE html>
<html>

<head>
<script data-require="angular.js@*" data-semver="1.2.16" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>

<body ng-controller="test">
<h1>Hello Plunker!</h1>
<span ng-class="{'red':animation.shake}">Hello World</span>
<button ng-click="shake()">red</button>
<script>

  var app=angular.module("app",[]);
  app.controller("test",function($scope,$timeout){
    $scope.animation={shake:false};
    $scope.shake=function(){
      $scope.animation.shake=true;
      $timeout(function(){
        $scope.animation.shake=false;
      },2000,true);
    }
  });
  angular.bootstrap(document,["app"]);
</script>

+11

Source: https://habr.com/ru/post/1536873/

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