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App.vue
main.js
 
<template>
  <h1>The 'enter-cancelled' Event</h1>
  <p>Click the toggle button again before the enter animation is finished to trigger the 'enter-cancelled' event.</p>
  <button @click="pVisible=!pVisible">Toggle</button><br>
  <Transition @enter-cancelled="onEnterCancelled">
    <p v-if="pVisible" id="p1">Hello World!</p>
  </Transition>
  <br>
  <div v-if="divVisible">You interrupted the "enter-active" transition.</div>
</template>

<script>
export default {
  data() {
    return {
      pVisible: false,
      divVisible: false
    }
  },
  methods: {
    onEnterCancelled() {
      this.divVisible = true;
    }
  }
}
</script>

<style scoped>
  .v-enter-active {
    animation: swirlAdded 2s;
  }
  @keyframes swirlAdded {
    from {
      opacity: 0;
      rotate: 0;
      scale: 0.1;
    }
    to {
      opacity: 1;
      rotate: 720deg;
      scale: 1;
    }
  }
  #p1, div {
    display: inline-block;
    padding: 10px;
    border: dashed black 1px;
  }
  #p1 {
    background-color: lightgreen;
  }
  div {
    background-color: lightcoral;
  }
</style>                  
import { createApp } from 'vue'

import App from './App.vue'

const app = createApp(App)
app.mount('#app')
                  
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