JavaScript数组slice()方法截取指定元素详解

<!DOCTYPE html>
<html>
<body>
<p id="demo">
Click the button to extract the second and 
the third elements from the array.</p>
<button onclick="myFunction()">Try it</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>
</body>
</html>