W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <body> <h1>JavaScript 运算符</h1> <h2>... 运算符</h2> <p>"展开" 运算符用于展开可迭代对象的元素：</p> <p id="demo"></p> <script> const cars1 = ["Saab", "Volvo", ..."BMW"]; const cars2 = ["Fiat", "Toyota"]; const combined = [cars1, ...cars2]; document.getElementById("demo").innerHTML = combined; </script> </body> </html>