Скачать или смотреть How to Show Toastr Messages Sequentially in Angular

A practical guide on displaying toastr messages one after the other in Angular applications using ngx-toastr. Learn step-by-step how to enhance user experience by ensuring notifications appear only after dismissing the previous one.
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How to Show Toastr Messages Sequentially in Angular

When developing applications, user notifications play a pivotal role in enhancing user experience. Toastr messages are a popular way to deliver these notifications. However, a common challenge developers encounter is ensuring that multiple toastrs are displayed one after the other, rather than all at once.

In this guide, we will explore this problem and provide a step-by-step solution for showing toastr messages sequentially using Angular and ngx-toastr. Let's delve into it!

Understanding the Problem

You might have noticed that if you have multiple messages to display using toastr, they all appear simultaneously. This can clutter the UI and overwhelm users. The goal here is to ensure only one toastr message is displayed at a time. When the user dismisses the current message, the next one should seamlessly appear.

The Initial Code

Here's the basic code that demonstrates the issue:

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

With the code above, all your messages pop up at once, which is not the intended behavior.

The Solution

To remedy this situation, we'll create a method that will manage the display of the toastr messages sequentially. The process involves determining when the current toastr has been dismissed before proceeding to the next message.

Step-by-Step Approach

Define the Method:
We'll create a method called displayNextMessage which will take the list of messages and the current index as parameters.

Check Conditions:
We need to check if there are any messages left and if we're still within the bounds of the array.

Display the Toastr:
For each message, we will display the toastr and subscribe to the onHidden event. This event fires when the toastr is dismissed, allowing us to proceed to the next message.

Recursive Call:
Increment the index and call the method again, creating a loop through the message list.

Here’s the Complete Implementation:

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

How to Call the Method

To start the process, simply call the displayNextMessage method with the messages array and the initial index:

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

Conclusion

By following this structured approach, you can effectively manage toastr messages in your Angular application, ensuring a smoother and more user-friendly experience. Sequentially displaying messages helps in avoiding confusion, allowing users to focus on one notification at a time.

Now that you have the solution, implement it in your projects and see how it enhances the way you handle notifications!

If you have any questions or additional tips to share about working with toastr messages, feel free to leave a comment below!