javascript - 谁能解释这些功能在做什么

Question

function deleteParentNodeOnClick() {
  for (var i = 0; i < deleteButton.length; i++) {
    deleteButton[i].addEventListener("click", deleteNodeOnClick);
  }
}

function deleteNodeOnClick(e) {
  var trash = document.querySelectorAll("i");
  for (var ind = 0; ind < trash.length; ind++) {
    console.log(e);
    this.parentNode.parentNode.remove();
  }
}

标签： javascript