如何在React Input Onkeydown事件中获得默认行为？

Question

我在捕获键盘事件的地方有一个输入元素。

onKeyDown={(e) => {
     if (e.key === "ArrowDown") {
         console.log("pressed down arrow");
     } else if (e.key === "ArrowUp") {
         console.log("pressed up arrow");
     } else if (e.key === "Enter") {
         console.log("pressed enter");
     } else {
         how do I get default behavior for the rest of the keys? 
         Ex: backspace
         When backspace is pressed, it is not deleting the characters from the input box
     }
}}

这是沙盒 link