如何调用其他函数内部的函数

Question

我在下面的代码中调用close函数时卡住了。该程序为工作日创建了一个新的内容。在穿上必要的地方后，如果用户想要删除close.setSttribute("onclick", "removeItem(this,event)");函数必须调用的内容。但在我的代码中出了问题。请帮忙修复调用该功能。

function addClick() {
  var weekday = document.getElementById("weekdaysModal").value;
  var name = document.getElementById("fname").value;
  var itemContent = document.getElementById("textArea").value;

  var divItem = document.createElement("div");
  divItem.setAttribute("class", "divItem");
  var close = document.createElement("img");
  close.setAttribute("class", "close");
  close.setAttribute("src", "./img/delete.png");
  close.setAttribute("onclick", "removeItem(this, event)");
  close.setAttribute("width", "20px");
  close.setAttribute("height", "20px");
  console.log(close);
  divItem.appendChild(close);
  var textDiv = document.createElement('div');
  textDiv.setAttribute("class", "name");
  textDiv.innerHTML = name;
  divItem.appendChild(textDiv);
  var content = document.createElement('div');
  content.setAttribute("class", "itemContent");
  content.innerHTML = itemContent;
  content.style.display = 'none';
  divItem.appendChild(content);

  if (weekday == "monday") {
    //  divItem.setAttribute("index", monIndex);
    divItem.style.background = "#d4f442";
    document.getElementsByClassName('displayArea_mon')[0].appendChild(divItem);

  } else if (weekday == "tuesday") {
    //  divItem.setAttribute("index", tueIndex);
    divItem.style.background = "#65f441";
    document.getElementsByClassName('displayArea_tue')[0].appendChild(divItem);
  } else if (weekday == "wednesday") {
    console.log("wed");
    //  divItem.setAttribute("index", wedIndex);
    divItem.style.background = "#65f441";
    document.getElementsByClassName('displayArea_wed')[0].appendChild(divItem);
  } else if (weekday == "thursday") {
    //  divItem.setAttribute("index", thuIndex);
    divItem.style.background = "#65f441";
    document.getElementsByClassName('displayArea_thu')[0].appendChild(divItem);
  } else if (weekday == "friday") {
    //  divItem.setAttribute("index", friIndex);
    divItem.style.background = "#65f441";
    document.getElementsByClassName('displayArea_fri')[0].appendChild(divItem);
  } else {
    console.log("Error");
  }
  closeButton();
  console.log(name + content + weekday);
}

function removeItem() {
  var x = getElementsByClassName('divItem');
  x.delete(x.selectedIndex);
}