html运行实例（eg_js_array_holes）-搜寻教程库

代码示例：（标识：eg_js_array_holes）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数组</h1>

<p>添加具有高索引的元素可以在数组中创建未定义的“孔”。</p>

<p id="demo"></p>

<script>
var fruits, text, fLen, i;
fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits[6] = "Lemon";

fLen = fruits.length;
text = "";
for (i = 0; i < fLen; i++) {
  text += fruits[i] + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>

</body>
</html>