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HTML

              
                <body>
	<div class="container">
		<h2>TODO LIST</h2>
		<h3>Add Item</h3>
		<p>
			<input id="new-task" type="text"><button>Add</button>
		</p>

		<h3>Todo</h3>
		<ul id="incomplete-tasks">
			<li><input type="checkbox"><label>Pay Bills</label><input type="text"><button class="edit">Edit</button><button class="delete">Delete</button></li>
			<li><input type="checkbox"><label>Go Shopping</label><input type="text" value="Go Shopping"><button class="edit">Edit</button><button class="delete">Delete</button></li>
		</ul>

		<h3>Completed</h3>
		<ul id="completed-tasks">
			<li><input type="checkbox" checked><label>See the Doctor</label><input type="text"><button class="edit">Edit</button><button class="delete">Delete</button></li>
		</ul>
	</div>

</body>
              
            
!

CSS

              
                /* Basic Style */

body {
	background: #fff;
	color: #333;
	font-family: Lato, sans-serif;
	background-color:#e4e4e4;
}

.container {
	display: block;
	width: 400px;
	margin: 10px auto 100px;
	background-color:#fff;
	padding:0px 10px 10px 10px;
	border-radius:10px
}

h2 {
	text-align:center;
	padding-top:10px;
	margin-bottom:0px;
}

ul {
	margin: 0;
	padding: 0;
}

li * {
	float: left;
}

li,
h3 {
	clear: both;
	list-style: none;
}

input,
button {
	outline: none;
}

button {
	background: none;
	border: 0px;
	color: #888;
	font-size: 15px;
	width: 60px;
	margin: 10px 0 0;
	font-family: Lato, sans-serif;
	cursor: pointer;
}

button:hover {
	color: #333;
}


/* Heading */

h3,
label[for='new-task'] {
	color: #333;
	font-weight: 700;
	font-size: 15px;
	border-bottom: 2px solid #333;
	padding: 20px 0 10px;
	margin: 0;
	text-transform: uppercase;
}

input[type="text"] {
	margin: 0;
	font-size: 18px;
	line-height: 18px;
	height: 18px;
	padding: 10px;
	border: 1px solid #ddd;
	background: #fff;
	border-radius: 6px;
	font-family: Lato, sans-serif;
	color: #888;
}

input[type="text"]:focus {
	color: #333;
}


/* New Task */

label[for='new-task'] {
	display: block;
	margin: 0 0 20px;
}

input#new-task {
	float: left;
	width: 318px;
}

p > button:hover {
	color: #0FC57C;
}


/* Task list */

li {
	overflow: hidden;
	padding: 20px 0;
	border-bottom: 1px solid #eee;
}

li > input[type="checkbox"] {
	margin: 0 10px;
	position: relative;
	top: 15px;
}

li > label {
	font-size: 18px;
	line-height: 40px;
	width: 237px;
	padding: 0 0 0 11px;
}

li > input[type="text"] {
	width: 226px;
}

li > .delete:hover {
	color: #CF2323;
}


/* Completed */

#completed-tasks label {
	text-decoration: line-through;
	color: #888;
}


/* Edit Task */

ul li input[type=text] {
	display: none;
}

ul li.editMode input[type=text] {
	display: block;
}

ul li.editMode label {
	display: none;
}
              
            
!

JS

              
                var taskInput = document.getElementById("new-task"); //new-task
var addButton = document.getElementsByTagName("button")[0]; //first button
var incompleteTasksHolder = document.getElementById("incomplete-tasks"); //incomplete-tasks
var completedTasksHolder = document.getElementById("completed-tasks"); //completed-tasks

//New Task List Item
var createNewTaskElement = function(taskString) {
	//Create List Item
	var listItem = document.createElement("li");

	//input (checkbox)
	var checkBox = document.createElement("input"); // checkbox
	//label
	var label = document.createElement("label");
	//input (text)
	var editInput = document.createElement("input"); // text
	//button.edit
	var editButton = document.createElement("button");
	//button.delete
	var deleteButton = document.createElement("button");

	//Each element needs modifying

	checkBox.type = "checkbox";
	editInput.type = "text";

	editButton.innerText = "Edit";
	editButton.className = "edit";
	deleteButton.innerText = "Delete";
	deleteButton.className = "delete";

	label.innerText = taskString;

	//Each element needs appending
	listItem.appendChild(checkBox);
	listItem.appendChild(label);
	listItem.appendChild(editInput);
	listItem.appendChild(editButton);
	listItem.appendChild(deleteButton);

	return listItem;
}

//Add a new task
var addTask = function() {
	console.log("Add task...");
	//Create a new list item with the text from #new-task:
	var listItem = createNewTaskElement(taskInput.value);
	//Append listItem to incompleteTasksHolder
	incompleteTasksHolder.appendChild(listItem);
	bindTaskEvents(listItem, taskCompleted);

	taskInput.value = "";
}

//Edit an existing task
var editTask = function() {
	console.log("Edit task...");

	var listItem = this.parentNode;

	var editInput = listItem.querySelector("input[type=text");
	var label = listItem.querySelector("label");

	var containsClass = listItem.classList.contains("editMode");

	//if the class of the parent is .editMode
	if (containsClass) {
		//Switch from .editMode
		//label text become the input's value
		label.innerText = editInput.value;
	} else {
		//Switch to .editMode
		//input value becomes the label's text
		editInput.value = label.innerText;
	}

	//Toggle .editMode on the list item
	listItem.classList.toggle("editMode");

}

//Delete an existing task
var deleteTask = function() {
	console.log("Delete task...");
	var listItem = this.parentNode;
	var ul = listItem.parentNode;

	//Remove the parent list item from the ul
	ul.removeChild(listItem);
}

//Mark a task as complete
var taskCompleted = function() {
	console.log("Task complete...");
	//Append the task list item to the #completed-tasks
	var listItem = this.parentNode;
	completedTasksHolder.appendChild(listItem);
	bindTaskEvents(listItem, taskIncomplete);
}

//Mark a task as incomplete
var taskIncomplete = function() {
	console.log("Task incomplete...");
	//Append the task list item to the #incomplete-tasks
	var listItem = this.parentNode;
	incompleteTasksHolder.appendChild(listItem);
	bindTaskEvents(listItem, taskCompleted);
}

var bindTaskEvents = function(taskListItem, checkBoxEventHandler) {
	console.log("Bind list item events");
	//select taskListItem's children
	var checkBox = taskListItem.querySelector("input[type=checkbox]");
	var editButton = taskListItem.querySelector("button.edit");
	var deleteButton = taskListItem.querySelector("button.delete");

	//bind editTask to edit button
	editButton.onclick = editTask;

	//bind deleteTask to delete button
	deleteButton.onclick = deleteTask;

	//bind checkBoxEventHandler to checkbox
	checkBox.onchange = checkBoxEventHandler;
}

// var ajaxRequest = function() {
// 	console.log("AJAX request");
// }

//Set the click handler to the addTask function
addButton.addEventListener("click", addTask);
//addButton.addEventListener("click", ajaxRequest);

//cycle over incompleteTasksHolder ul list items
for (var i = 0; i < incompleteTasksHolder.children.length; i++) {
	//bind events to list item's children (taskCompleted)
	bindTaskEvents(incompleteTasksHolder.children[i], taskCompleted);
}

//cycle over completedTasksHolder ul list items
for (var i = 0; i < completedTasksHolder.children.length; i++) {
	//bind events to list item's children (taskIncomplete)
	bindTaskEvents(completedTasksHolder.children[i], taskIncomplete);
}
              
            
!
999px

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