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JavaScript Interactive Web Pages with JavaScript Traversing and Manipulating the DOM with JavaScript Perform: Modifying Elements

Posted by roberthopman
roberthopman
16,502 Points

Why does .value need to be added?

about this part:

//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); }

--> Why not just taskInput?

2 Answers

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

:point_right: The createNewTaskElement function takes a string as its parameter.

But taskInput is an input element. The value property of an input element represents the content entered into the input as a string. So taskInput.value provides the correct type of argument to pass to createNewTaskElement.

Now it would be possible to rewrite createNewTaskElement to take an element as the parameter; but the current code requires a string.

roberthopman
roberthopman
16,502 Points

Aha, so if I rewrite the code, would it be like this: createNewTaskElement(document.getElementById("new-task").value) ?

Owa Aquino
Owa Aquino
19,277 Points
Owa Aquino
Owa Aquino
19,277 Points

I did forgot to add ".value" in my code. And get this instead [object HTMLInputElement] for a Task value. :D

Hopes this help.

Cheres!