源代碼
點擊運行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>教程</title> </head> <body> <p id="demo">單擊按鈕刪除數組的第一個元素。</p> <p id="demo2"></p> <button onclick="myFunction()">點我</button> <script> var fruits = ["Banana", "Orange", "Apple", "Mango"]; function myFunction(){ var delell = fruits.shift(); var x=document.getElementById("demo"); x.innerHTML= '刪除後數組為:' + fruits; document.getElementById("demo2").innerHTML= '刪除的元素是:' + delell; } </script> </body> </html>
運行結果