Bootstrap 4 Tutorial

Bootstrap 4 JS Toasts

Last modified on: October 27, 2024

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<h2 class="relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8">Bootstrap 4 JavaScript Toasts</h2>
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<p>The Bootstrap 4 Toast component provides a non-intrusive way to show brief messages, such as notifications or alerts, that automatically disappear after a short time. Toasts are ideal for showing status updates without disrupting the user experience.</p>
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<h3>1. Basic Toast Setup</h3>
<p>Here&rsquo;s how to create a basic toast. Use Bootstrap&rsquo;s <code>.toast</code>, <code>.toast-header</code>, and <code>.toast-body</code> classes to structure it, and JavaScript to control its visibility.</p>
<p><strong>Example:</strong></p>
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<pre class="language-markup"><code>&lt;!DOCTYPE html&gt;
&lt;html lang="en"&gt;
&lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1.0"&gt;
    &lt;title&gt;Bootstrap Toast Example&lt;/title&gt;
    &lt;!-- Bootstrap CSS CDN --&gt;
    &lt;link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;!-- Toast Container --&gt;
    &lt;div aria-live="polite" aria-atomic="true" style="position: relative; min-height: 200px;"&gt;
        &lt;!-- Toast Positioned at the Top Right --&gt;
        &lt;div class="toast" style="position: absolute; top: 1rem; right: 1rem;" data-autohide="true" data-delay="3000"&gt;
            &lt;div class="toast-header"&gt;
                &lt;img src="https://via.placeholder.com/20" class="rounded mr-2" alt="Icon"&gt;
                &lt;strong class="mr-auto"&gt;Bootstrap&lt;/strong&gt;
                &lt;small&gt;Just now&lt;/small&gt;
                &lt;button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close"&gt;
                    &lt;span aria-hidden="true"&gt;&amp;times;&lt;/span&gt;
                &lt;/button&gt;
            &lt;/div&gt;
            &lt;div class="toast-body"&gt;
                Hello, this is a Bootstrap toast!
            &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;

&lt;!-- Button to Show Toast --&gt;
    &lt;button class="btn btn-primary mt-3" onclick="$('.toast').toast('show');"&gt;Show Toast&lt;/button&gt;

&lt;!-- Bootstrap JS and dependencies --&gt;
    &lt;script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"&gt;&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
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<ul>
<li><strong>Explanation</strong>:
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<li><code>.toast</code>: The main container for the toast.</li>
<li><code>.toast-header</code> and <code>.toast-body</code>: For header and content.</li>
<li><code>data-autohide="true"</code> and <code>data-delay="3000"</code>: Controls automatic hiding after 3 seconds.</li>
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<h3>2. Manually Triggering Toast Visibility</h3>
<p>To trigger a toast manually, use the following JavaScript code to show or hide it:</p>
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<pre class="language-markup"><code>$('.toast').toast('show');  // Show the toast
$('.toast').toast('hide');  // Hide the toast
</code></pre>
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<h3>3. Toast Positioning</h3>
<p>You can position toasts anywhere on the screen by adjusting the inline CSS for the <code>.toast</code> container:</p>
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<pre class="language-markup"><code>&lt;div class="toast" style="position: fixed; bottom: 1rem; left: 1rem;"&gt;
    &lt;!-- Toast Content Here --&gt;
&lt;/div&gt;
</code></pre>
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<p>This example places the toast in the bottom-left corner of the viewport.</p>
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<h3>&nbsp;</h3>
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