JavaScript error (Uncaught SyntaxError: Unexpected end of input)

//Problem: User interaction doesn't provide desired results.
//Solution: Add interactivty so the user can manage daily tasks.

var taskInput = document.getElementById("new-task"); //new-task
var addButton; // first button
var incompleteTaskHolder = document.getElementById("incomplete-tasks"); //incomplete-tasks
var completerTasksHolder = document.getElementById("completed-tasks"); //completed-tasks


//Add a new task
var addTask = function () {

  //When the button is pressed
  //Create a new list item with the text from #new-task:
    //input (checkbox)
    //label
    //input (text)
    //button.edit
    //button.delete
    //Each elements, needs modified and appended
}

//Edit an existing task

var editTast = function () {
  //When the Edit button is pressed
    //if the class of the parent is .editMode
      //Switch from .editMode
      //label text become the input's value
    //else
      //Switch to .editMode
      //input value becomes the label's text

    //Toggle .editMode on the parent
}
//Delete an existing task
var deleteTask = function () { 
  //When the Delete button is pressed
    //Remove the parent list item from the ul

//Mark a task as complete
var taskComplete = function () {
  //When the checkbox is checked
    //Append the task list item to the #completed-tasks
}
//Mark a task as incomplete
var taskIncomplete = function () {
  //When the checkbox is unchecked
    //Append the task list item to the #incomplete-tasks
}