vueではulの下のすべてのli要素を取得して擬似配列を構成し、配列forEachに変換して各liの高さを取得します.
10502 ワード
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<p v-for="count in 10"> {{count}} , 10 </p>
<ul ref="ulParent">
<li style="height: 60px;">1</li>
<li style="height: 30px;">2</li>
<li style="height: 50px;">3</li>
<li style="height: 160px;">4</li>
<li style="height: 10px;">5</li>
</ul>
<button @click="getAllLiHeight()"> </button>
<button @click="dealSome()"> some</button>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
new Vue({
el:'#app',
data: {
dataArr: [' ', 'itlike11.com', ' ']
},
methods: {
getAllLiHeight(){
let liHeightArr = [];
// 1. dom
let allLis = this.$refs.ulParent.getElementsByTagName('li');
// console.log(allLis);
// console.log(Array.prototype.slice.call(allLis));
//
Array.prototype.slice.call(allLis).forEach(li => {
// li ，
liHeightArr.push(li.clientHeight);
});
console.log(liHeightArr);
},
//some
dealSome(){
let result = this.dataArr.some((str)=>{
// 'itlike.com' true， false
return str === 'itlike.com';
});
console.log(result);
}
}
});
</script>
</body>
</html>