Home
JS
JS
Tryit: JAVASCRIPT
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> <p>arguments.length 属性返回函数接收的参数数量：</p> <p id="demo"></p> <script> function myFunction(a, b) { return arguments.length; } document.getElementById("demo").innerHTML = myFunction(4, 3); </script> </body> </html>