html运行实例（eg_js_type_convert_constructor_isarray

代码示例：（标识：eg_js_type_convert_constructor_isarray_2）

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript 数组对象</h2>

<p>这个“自制的” isArray() 函数在数组上使用时返回 true：</p>

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

<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.getElementById("demo").innerHTML = isArray(fruits);

function isArray(myArray) {
  return myArray.constructor === Array;
}
</script>

</body>
</html>