<!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>
Orange,Lemon
<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to join the array elements into a string.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var x=document.getElementById("demo");
x.innerHTML=fruits.join();
}
</script>
</body>
</html>
Banana,Orange,Apple,Mango
<!DOCTYPE html>
<html>
<body>
<p id="demo">点击按钮将数组转为字符串并返回。</p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction()
{
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var str = fruits.toString();
var x=document.getElementById("demo");
x.innerHTML= str;
}
</script>
</body>
</html>
Banana,Orange,Apple,Mango
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