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Start your free trialjessica grinberg
14,117 Pointslabel has a value of undefined
Hi, when I test the addTask function, it returned a task with a value of undefined, the add and delete work it's just it's value which is not returned properly and is still undefined. I have been trying to debug my code for a possible mistake but I dont see any. Here is the following code:
var taskInput = document.getElementById('new-task'); //new-task
var addButton = document.getElementsByTagName('button')[0]; //first button on page
var incompleteTasksHolder = document.getElementById('incomplete-tasks'); //incomplete-tasks
var completedTasksHolder = document.getElementById('completed-tasks'); //completed-tasks
var createNewTaskElement = function(taskString){
var listItem = document.createElement("li");
var checkBox = document.createElement("input");
var label = document.createElement("label");
var editInput = document.createElement("input");
var editButton = document.createElement("button");
var deleteButton = document.createElement("button");
checkBox.type = "checkbox";
editInput.type = "text";
editButton.innerText = "Edit";
editButton.className = "edit";
deleteButton.innerText = "Delete";
deleteButton.className = "delete";
label.innerText = taskString;
listItem.appendChild(checkBox);
listItem.appendChild(label);
listItem.appendChild(editInput);
listItem.appendChild(editButton);
listItem.appendChild(deleteButton);
return listItem;
};
var addTask = function(taskInput){
console.log("Add task..");
var listItem = createNewTaskElement(taskInput.value);
incompleteTasksHolder.appendChild(listItem);
bindTaskEvents(listItem, taskCompleted);
};
var editTask = function(){
console.log("Edit task..");
};
var deleteTask = function(){
console.log("Delete task..");
var listItem = this.parentNode;
var ul = listItem.parentNode;
ul.removeChild(listItem);
};
var taskCompleted = function(){
console.log("Task Complete..");
var listItem = this.parentNode;
completedTasksHolder.appendChild(listItem);
bindTaskEvents(listItem, taskIncomplete);
};
var taskIncomplete = function(){
console.log("Task Incomplete..");
var listItem = this.parentNode;
incompleteTasksHolder.appendChild(listItem);
bindTaskEvents(listItem, taskCompleted);
};
var bindTaskEvents = function(taskListItem, checkBoxEventHandler){
console.log("Bind list items events");
var checkBox = taskListItem.querySelector("input[type=checkbox]") ;
var editButton = taskListItem.querySelector("button.edit");
var deleteButton = taskListItem.querySelector("button.delete");
editButton.onclick = editTask;
deleteButton.onclick = deleteTask;
checkBox.onchange = checkBoxEventHandler;
};
addButton.onclick = addTask;
for (var i=0; i< incompleteTasksHolder.children.length ; i++) {
bindTaskEvents(incompleteTasksHolder.children[i], taskCompleted);
}
for (var i=0; i< completedTasksHolder.children.length ; i++) {
bindTaskEvents(completedTasksHolder.children[i], taskIncomplete);
}
1 Answer
jessica grinberg
14,117 PointsI found my mistake when I typed the question! I passed the argument taskInput to the addTask function.
Chris Freeman
Treehouse Moderator 68,441 PointsChris Freeman
Treehouse Moderator 68,441 PointsGreat job!