如何获取由 querySelectorAll() 方法（javascript）制作的 DOM 数组的每个元素的索引？

Question

let var = document.querySelectoAll('.class')

console.log(var) = Array[15] 

(Array consists of 15 elements)

Answer 1

You can use NodeList.entries() for that:

const nodes = document.querySelectorAll('.class');
for (const [index, node] of nodes.entries()) {
    console.log(index);
    console.log(node);
}