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js或者jq可以模拟鼠标悬停在div上吗

有个hover悬停效果,想一进入页面模拟鼠标悬停让它显示效果,可以吗


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1、初始化时,添加hover的class;
2、鼠标划入后,删除hover的class;

<style>
    .app {
        width: 100px;
        height: 100px;
        background: antiquewhite;
    }
    .app.hover {
        background: aquamarine;
    }
    .app:hover {
        background: aquamarine;
    }
</style>

<div id="app" class="app hover">
</div>

<script>
  document.getElementById('app').onmouseenter = function () {
    this.className = 'app'
 }
</script>

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