javascript - 带键盘导航的Javascript下拉菜单

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                                已关闭8年。
            
                    
可以仅使用JS来完成箭头键导航吗？

不像超级鱼等第三方。

最佳答案

是的，这是一个骨架：

document.onkeydown = function(evt)
{
    evt = evt || window.event;
    if (evt.keyCode == 37)
    {
        //do something
    }
    else if (evt.keyCode == 38)
    {
        //do something
    }
    else if (evt.keyCode == 39)
    {
        //do something
    }
    else if (evt.keyCode == 40)
    {
        //do something
    }
};

关于javascript - 带键盘导航的Javascript下拉菜单，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/8209294/