Javascript Show Hide Div on Select Option Example Tutorial

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Inside this article we will see the concept i.e Javascript Show Hide Div on Select Option Example Tutorial. Article contains the classified information about show hide effect (Toggle effect) on HTML element using javascript.

If you are looking for a solution to show and hide an element of HTML using javascript then this article will help you a lot for this. Tutorial is super easy to understand and implement it in your code as well.

You can prefer jquery plugin as well. But here we will use the core concept of javascript to implement this toggle effect of an element.

Learn More –

Let’s get started.

Application Programming

Create a file index.html inside your localhost directory. Open file and write this complete code into it.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Javascript Show Hide Div on Select Option</title>
    <style>
        #box {
            display: none;
            background-color: orange;
            padding: 20px;
            height: 100px;
            width: 100px;
            margin-top: 20px;
        }
    </style>
</head>

<body>

    <select onchange="toggleDiv(this.value)">
        <option value="">Select Option</option>
        <option value="1">Show Box</option>
        <option value="0">Hide Box</option>
    </select>

    <div id="box">
        Visible Box
    </div>

    <script>
        function toggleDiv(value) {

            if (value == "") {
                alert("Please select an option");
            }
            const box = document.getElementById('box');
            box.style.display = value == 1 ? 'block' : 'none';
        }
    </script>
</body>

</html>

Code Explanation

On change event on select dropdown element.

<select onchange="toggleDiv(this.value)">
  ...
</select>

Whenever we select an option from dropdown, it sends selected option value to toggleDiv function.

Create Box ID reference for Div element

const box = document.getElementById('box');

Show Hide toggle effect on the basis of 1 (Show) and 0 (Hide) value

box.style.display = value == 1 ? 'block' : 'none';

Application Testing

Now,

Open project into browser.

URL: http://localhost/index.html

Select Show Box option

Once you select Hide Box option, it will hide the visible box div.

We hope this article helped you to learn Javascript Show Hide Div on Select Option Example Tutorial in a very detailed way.

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