如何在 NodeList[] 上应用 querySelectorAll()？

Question

for(var i = 0; i < mutation.addedNodes.length; i++) {

 var inputs = mutation.addedNodes[i];

 console.log(inputs);

}

我想对输入应用 querySelectorAll()，但它抛出错误

Uncaught TypeError: mutation.addedNodes[i].querySelectorAll is not a function.

Answer 1

but it is throwing an error Uncaught TypeError: mutation.addedNodes[i].querySelectorAll is not a function.

querySelectorAll 在 Element 上调用（不包括 TextNode），只需检查 mutation.addedNodes[i] 是否为 Element。

for(var i = 0; i < mutation.addedNodes.length; i++) 
{
   var ele = mutation.addedNodes[i];
   if ( ele instanceof Element )
   {   
      ele.querySelectorAll( "*" ); //put your selector 
   }
}

如何在 NodeList[] 上应用 querySelectorAll()？

How to apply querySelectorAll() on NodeList[]?

javascript

mutation-observers