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Courses Plus Student 13,306 Points

Help with dummy to-do app in JS


following the front-end development track, I finished the course Web pages interactions. As I saw in the course, I wanted to build a to-do app by myself to check how I was going on my JS journey...

And it's pretty bad. I also tried to check the course solution but it didn't help.

So here is my pb: I have and add button which is working perfect and adding element with buttons inside perfectly. So on the ongoing tasks, let's say i have 4 tasks, so it's 4 li's with 3 buttons (edit, approve, delete) for each li. When I click the delete button, i want the parent node li to be deleted, but, I can't figure out how to select the delete button dynamically depends on the delete button index i clicked on.

Hope I made myself clear, if not === I want the delete button to delete his parent li, how to do it.


<meta charset="UTF-8">
<link rel="stylesheet" href="css/bootstrap-theme.min.css">
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/main.css">
<link href='https://fonts.googleapis.com/css?family=Pacifico' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Martel:300' rel='stylesheet' type='text/css'>
<title> To-do App Chrome Extension - Fully Javascript Loaded</title>

<div class="row container-fluid addTodo">
    <h1>Add Tasks</h1>
    <input class="addTask" type="text">
    <button class="addTaskButton"><i class="glyphicon glyphicon-plus"></i></button>

<div class="separator row container-fluid"></div>

<div class="row container-fluid editTodo">
    <h1>Ongoing Tasks</h1>
    <ul class="ongoingList">
            Become a Javascript Master
            <button class="doneTaskButton"><i class="glyphicon glyphicon-ok-circle"></i></button>
            <button class="editTaskButton"><i class="glyphicon glyphicon-edit"></i></button>
            <button class="deleteOngoingTaskButton"><i class="glyphicon glyphicon-remove-circle"></i></button>

<div class="separator row container-fluid doneTodo">
    <h1>What you've done</h1>
    <span class="doneTask">Become a Javascript Master</span>
    <button class="deleteDoneTaskButton"><i class="glyphicon glyphicon-remove-circle"></i></button>


body { font-family: 'Martel', serif; }

h1, h2, h3, h4, h5, h6 { font-family: 'Pacifico', cursive; }

.app { width: 500px; margin: 0 auto; text-align: center; }

.glyphicon { font-size: 15px; top: 2px; padding: 5px; }

.doneTask { text-decoration: line-through; }

.addTodo { background-color: #6aabd0; width: 100%; margin: 0; padding-bottom: 20px; }

.editTodo { background-color: #d5777d; width: 100%; margin: 0; padding-bottom: 20px; }

.doneTodo { background-color: #6ac299; width: 100%; margin: 0; padding-bottom: 20px; }

.addTodo h1 { font-size: 30px; }


//1. Make button addTask work // 1.1 Add Task to ongoing task sections //define the needed elements

var addTaskButton = document.getElementsByClassName('addTaskButton')[0]; var deleteOngoingTask = document.getElementsByClassName('deleteOngoingTaskButton'); var deleteDoneTaskButton = document.getElementsByClassName('deleteDoneTaskButton'); var ongoingList = document.getElementsByClassName('ongoingList')[0];

var addTodoInput; var listItem; var doneButton; var editButton; var removeButton;

var addNewTodoTask = function() { addTodoInput = document.getElementsByClassName('addTask')[0].value; //Create List Element listItem = document.createElement('li'); //Create Buttons Elements for each task //Done Button doneButton = document.createElement('button'); doneButton.classList.add('doneTaskButton'); doneButton.innerHTML = ''; //Edit Button editButton = document.createElement('button'); editButton.classList.add('editTaskButton'); editButton.innerHTML = ''; //Remove Button removeButton = document.createElement('button'); removeButton.classList.add('deleteOngoingTaskButton'); removeButton.innerHTML = ''; //Append Elements to li listItem.innerHTML = addTodoInput; listItem.appendChild(doneButton); listItem.appendChild(editButton); listItem.appendChild(removeButton); //Append li to ul ongoingList.appendChild(listItem); //.2 Empty the addTask input document.getElementsByClassName('addTask')[0].value = ""; };

addTaskButton.onclick = addNewTodoTask;

// //2. Enter Edit mode when clicking on EditButton // 2.1 Make the span input to change the text // 2.2 When click out, back as a span // //2.3 Remove button should remove ongoing task //2.4 Mark as done button should import tasks from ongoing to Done Tasks // // //3. Remove button from DoneTask should remove doneTasks

Thanks for your help, and BTW, the solution must be Javascript only, no jQuery library or kind of things.

(My design is bad, I know!)


Casey Ydenberg
Casey Ydenberg
15,622 Points

Hi Simon,

It would be easier to help you if you put your code into a CodePen (http://codepen.io/) and formatted with line breaks/indentations etc..