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JavaScript Interactive Web Pages with JavaScript Selecting Elements and Adding Events with JavaScript Perform: Selecting Elements

jadaml
jadaml
11,593 Points

Calls to variable in console coming up as not defined

I can't see where I'm going wrong with my code to get them to populate in the console.

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

4 Answers

Steven Byington
Steven Byington
13,584 Points

Try calling the variable again after you first set it.

var taskInput = document.getElementById("new-task");
undefined
taskInput;
null

It comes up null the second time because I don't have an element with that ID, but if you do then it should show the element.

I was having this same problem and it was driving me crazy!

The following worked for me after checking that there were no errors with my code:

I saved my workspace and refreshed the preview of my To Do list. Then I re-opened the JavaScript console and it worked just fine.

By not refreshing the preview, it wasn't applying the new code from the Workspace.

Ronny Ewanek
Ronny Ewanek
4,385 Points

I also had a similar problem. Whenever something weird comes up, I've learned to painstakingly check my spelling and grammar. Here I didn't have the "By" part capitalized...

Michael Tigue
Michael Tigue
4,799 Points

I saved the app.js file again, opened the preview again, and clicked refresh on the preview tab. Then, I was able to access the variables in the console.