Скачать или смотреть How to Show a Bootstrap 5 Toast on Page Load

Learn how to effectively display a `Bootstrap 5 Toast` message when your webpage loads. This guide simplifies the process with clear examples and solutions.
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This video is based on the question https://stackoverflow.com/q/68861188/ asked by the user 'Veggie Wear' ( https://stackoverflow.com/u/7762669/ ) and on the answer https://stackoverflow.com/a/68861749/ provided by the user 'Shoejep' ( https://stackoverflow.com/u/3688864/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Displaying a Bootstrap 5 Toast on Page Load

Bootstrap is a popular front-end framework, admired for its responsive design and ease of use. One of its handy components is the toast message, which can be utilized to provide brief notifications to users. However, a common challenge developers face is how to trigger these toast messages on page load effectively. In this guide, we’ll explore how to display a Bootstrap 5 Toast when a webpage gets loaded, addressing a common issue many encounter when first working with this beautiful library.

The Problem

You may have found yourself in a situation where you want a toast notification to appear as soon as your webpage loads. You might have already tried something like this:

[[See Video to Reveal this Text or Code Snippet]]

But like many developers, your toast may not be appearing upon page load, leaving you perplexed.

The Solution

Understanding the Issue

The main reason your toast isn't displaying is due to the method used to select the toast element. The document.querySelectorAll('.toast') returns a NodeList of all matching elements, which means if there are multiple toast instances (or even just one), it will not directly reference the first instance you need.

Key Changes to Implement

The solution involves modifying your JavaScript code slightly. Instead of trying to create a bootstrap.Toast with a list of elements, you need to pull out the first element directly. Below are the steps that will correct your code:

Use document.querySelector for single selection or retrieve the first item from the NodeList.

Check if the toast element exists before attempting to show it.

Sample Implementation

Here’s the corrected version of your code that's guaranteed to work:

[[See Video to Reveal this Text or Code Snippet]]

Including Bootstrap CSS and JS

To ensure the toast works properly, don’t forget to include Bootstrap's CSS and JS files in your HTML. You can do this with the links provided below:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following the above steps, you'll have your Bootstrap 5 Toast appearing on page load effectively. Remember that understanding how to correctly reference elements and using Bootstrap components can streamline user notifications on your website. Don’t hesitate to adjust the content of your toast to make it more engaging and informative for your users! Happy coding!