如何从元素js中获取所有孩子

Question

how to get all chilredn from elemnt on javascript pure:

i have this code:

  const selectFaturamento = document.querySelector("div#faturamento");
  const optionsContainer = document.querySelector(".options-container");
  const optionsList = document.querySelectorAll(".option");

I basically need to get all the elements: .options-container.option

but they are children of my element: select

why do I have other elements that are not children that have the same class

Answer 1

When using document.querySelector or document.querySelectorAll , it uses the document as the parent. If you are looking for children of a specific selector, you can use that one instead of document to search inside of that node. For example:

  const selectFaturamento = document.querySelector("div#faturamento");
  const optionsContainer = selectFaturamento.querySelector(".options-container");
  const optionsList = optionsContainer.querySelectorAll(".option");