从一个数组中选择元素 - slice() - 在线编辑器

          <p id="demo">点击按钮截取数组下标 1 到 2 的元素。</p>
<button onclick="myFunction()">点我</button>
<script>
  function myFunction() {
    var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
    var citrus = fruits.slice(1, 3);
    var x = document.getElementById("demo");
    x.innerHTML = citrus;
  }
</script>
        