Am I utilizing the appropriate method to change the color of my element to red?

I'm currently attempting to change the color of all three headers to red when the "Red Headings" button is clicked by utilizing the changeStuff function. However, it doesn't appear to be functioning correctly. Can someone confirm if this is the appropriate function to achieve this task?

<title>Stanford Graduation</title>
<style type="text/css">
  .redElements {
    color: red;
  }
</style>
</head>

<body>


  <h1>Graduation</h1>

  <p>Graduation is the culmination of four (or more years of hard work).</p>

  <h2>Graduation Traditions</h2>

  <p>Stanford Graduation has its own amazing traditions.</p>

  <h3>The Wacky Talk</h3>

  <p>Stanford Seniors act and dress wacky as they enter the stadium.</p>

  <h3 id="speakerHeading">Speakers</h3>

  <p>Stanford graduation speakers always have Stanford ties.</p>

  <div>
    <input type="button" value="Red Headings" id="theRedButton" />
    <input type="button" value="Fade Out Speaker" id="theSpeakersButton" />
  </div>

  <script>
    "jquery-2.1.4.js"
  </script>
  <script>
    function changeStuff() {
      $("h").addClass("redElements");
    }
    $("theRedButton").bind("click", changeStuff);
  </script>
  

</body>

Answer №1

If you want to apply a specific class to all header elements, follow these steps:

function modifyHeaders() {
    $("h1, h2, h3").addClass("highlightHeader");
}
$("#highlightButton").on("click", modifyHeaders);

Update: Below is the full HTML content you should use, including how to include jQuery and set up the document ready function:

<head>
    <title>Exciting Event</title>
    <style type="text/css">
        .highlightHeader {
            color: blue;
        }
    </style>
</head>

<body>
    <h1>Event Title</h1>

    <p>This event promises to be unforgettable.</p>

    <h2>Event Schedule</h2>

    <p>Check out the exciting activities planned for the day.</p>

    <h3>VIP Guests</h3>

    <p>Our special guests will make this event truly memorable.</p>

    <h3 id="performerHeading">Live Performances</h3>

    <p>Get ready for amazing live performances throughout the event.</p>

    <div>
        <input type="button" value="Highlight Titles" id="highlightButton" />
        <input type="button" value="Enlarge Text" id="enlargeTextButton" />
    </div>

    <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
    <script>
        $(document).ready(function() {
            $("#highlightButton").on("click", modifyHeaders);
        });
        function modifyHeaders() {
            $("h1, h2, h3").addClass("highlightHeader");
        }
    </script>
</body>

Here's a live demo showcasing the functionality:

Answer №2

Your code contains syntax errors that need to be fixed.

Try updating it to:

function changeElements() {
    $("h1,h2,h3").addClass("redElements");
}
$("#clickRedButton").on("click", changeElements);

https://jsfiddle.net/cj7o6xhr/

Additionally, make sure to adjust:

<script>
    "jquery-2.1.4.js"
</script>

To this format:

<script src="jquery-2.1.4.js"></script>

Answer №3

Give this a try:

$("h1,h2,h3").addClass("redElements");

You won't find an element named h

When using jQuery for ids, use # .

If you don't use the #, jQuery will treat the provided selector as an element

To add something like this

$("#theRedButton").bind("click",changeStuff);

Answer №4

$("#theRedButton").bind("click",changeStuff);

I just added a # for selecting by id.

Instead of $('h'), you should use $('h1,h2,h3,h4,h5'); to target the desired classes on the page.

Furthermore, make sure jQuery is included as I can see it in your code.

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