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JavaScript Interacting with the DOM Responding to Events Adding an Event Listener

Posted by Thristen Jones
Thristen Jones
2,824 Points

My background is not turning red. Is this not the right syntax inside my function?

How do I turn my background red when i click the 'Make It Red' button within my function?

app.js 
var warning = document.getElementById("warning");
var button = document.querySelector('#makeItRed');

button.addEventListener('click', () => {
  warning.backGround.color = 'red'
})
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>Adding an Event Listener</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <div id="warning">
            Warning: My background should be red!
        </div>
        <button id="makeItRed">Make It Red!</button>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Sean Poore
Sean Poore
5,365 Points
Sean Poore
Sean Poore
5,365 Points

In app.js change your code from this

var warning = document.getElementById("warning");
var button = document.querySelector('#makeItRed');

button.addEventListener('click', () => {
  warning.backGround.color = 'red'
})

To this:

var warning = document.getElementById("warning");
var button = document.querySelector('#makeItRed');

button.addEventListener('click', () => {
  warning.style.backgroundColor = `red`;
})
Dan McLaughlin
Dan McLaughlin
14,273 Points

This was helpful. Little rusty so for some reason I made a similar mistake. I thought it was odd though, even after correcting it wouldn't go through, but it would after I switched from getElementById to querySelector for the button.