I just went over my code with an experienced developer and he made a lot of very helpful changes, but, unfortunately, the code did not save properly and I lost all the edits!!!(我只是和一个经验丰富的开发人员一起检查了我的代码，他做了很多非常有帮助的更改，但是不幸的是，代码没有正确保存，我丢失了所有编辑！)
The main thing he helped with was eliminating some of my code repetition.(他帮助的主要事情是消除了一些代码重复。) I have two functions that share a lot of code: //Add item to To-Do List with "Add" Button AND //Add item to list with ENTER KEY.(我有两个共享大量代码的函数：//使用“添加”按钮将项目添加到待办事项列表中，以及//使用ENTER键将项目添加到列表中。) What he did for this was to add the bulk of these functions to the //Add new item to To-Do List function, so the other functions were simpler.(他为此所做的就是将大量这些功能添加到//向待办事项列表功能添加新项，因此其他功能更简单。) I forgot how he did this, though!(我忘记了他是怎么做到的！) If anyone can help I would really appreciate it!(如果有人可以提供帮助，我将不胜感激！)//Add new item to To-Do List
function addNewItem(list, itemText) {
totalItems++;
var listItem = document.createElement("li");
var checkbox = document.createElement("input");
checkbox.type = "checkbox";
checkbox.id = "cb_" + totalItems;
checkbox.onclick = updateStatus;
var span = document.createElement("span");
span.id = "item_" + totalItems;
span.textContent = itemText;
var spanDelete = document.createElement("span2");
spanDelete.id= "spanDelete_" + totalItems;
spanDelete.textContent = "DELETE";
spanDelete.onclick = deleteItem;
var spanEdit = document.createElement("span3")
spanEdit.id = "editId_" + totalItems;
spanEdit.textContent = "EDIT";
spanEdit.onclick = editItem;
listItem.appendChild(checkbox);
listItem.appendChild(span);
listItem.appendChild(spanDelete);
listItem.appendChild(spanEdit);
list.appendChild(listItem);
}
//Add item to list with ENTER KEY
var totalItems = 0;
var inItemText = document.getElementById("inItemText");
inItemText.focus();
inItemText.onkeyup = function(event) {
if (event.which === 13) {
var itemText = inItemText.value;
if (!itemText || itemText === "") {
return false;
}
addNewItem(document.getElementById("todoList"), itemText);
inItemText.focus();
inItemText.select();
}
}
//Add item to To-Do List with "Add" Button
var btnNew = document.getElementById("btnAdd");
btnNew.onclick = function() {
var itemText = inItemText.value;
if (!itemText || itemText === "") {
return false;
}
addNewItem(document.getElementById("todoList"), itemText);
inItemText.focus();
inItemText.select();
}
Here is the Fiddle: https://jsfiddle.net/Rassisland/7bkcLfhu/(这是小提琴： https : //jsfiddle.net/Rassisland/7bkcLfhu/)
ask by Rassisland translate from so
