javascript - 如何在按键上的一行代码中一个接一个地滚动查看节点列表中的每个项目？

Question

我有一个页面，我想用一行代码将每个元素滚动到 View 中。

我目前的代码:

window.addEventListener("keyup", function (e) { e.keyCode==13 ?document.querySelectorAll("ins").scrollIntoView():void})

我以为我可以让它与单个元素一起工作，但我没有得到关键事件(没关系，它不是本地文件上的脚本):

window.addEventListener("keyup", function (e) { console.log("test") })

Answer 1

var current=0;
function scrollIntoView(index){
    let node=document.querySelectorAll("ins")[index];
    if(node){
         node.scrollIntoView();
     }
}
window.addEventListener("keyup", function (e) { 
      e.keyCode==13 ? scrollIntoView(current++) :void
});

在一行中:

var current=0;function scrollIntoView(index){let node=document.querySelectorAll("ins")[index];if(node){node.scrollIntoView();         }}window.addEventListener("keyup", function (e) { e.keyCode==13 ? scrollIntoView(current++) :void })

var current=0;

function scrollIntoView(index){
   let node=document.querySelectorAll("ins")[index];
   if(node){
       node.scrollIntoView();
   }
};

window.addEventListener("keyup", function (e) {
   current>=document.querySelectorAll("ins").length ? current = 0 : null;
   e.keyCode==13 && document.querySelectorAll("ins").length && scrollIntoView(current++);
});

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