Скачать или смотреть How to Truncate Long Text with Ellipsis in Angular and Show More on Click

Discover how to effectively handle long text in Angular applications by creating a component that truncates text with ellipsis and displays more in a modal on click.
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How to Truncate Long Text with Ellipsis in Angular and Show More on Click

In today's web applications, dealing with long strings of text can pose a challenge, especially when it comes to maintaining a clean and organized layout. When the text exceeds the available space, a common solution is to truncate the text and add an ellipsis (...) to indicate that there is more content available. Moreover, allowing users to click on the truncated text to see the complete content in a modal is a user-friendly feature that enhances the overall experience.

The Challenge

As an Angular developer, you might encounter situations where you're displaying long text values in your application. For instance, using Angular Material and Bootstrap, you may have a requirement to present this text in a two-column layout where overflowing text needs to be visually truncated. This way, you prevent the layout from breaking while still giving users the option to see the full text.

Existing Solution with a Pipe

Initially, you might have implemented a solution using a custom pipe called longText. Here's a brief look at how this pipe could be structured:

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

While this pipe successfully truncates long text, it doesn't provide the necessary functionality to display the complete text in a modal on click.

Moving to a Component-Based Approach

To better handle this requirement, it is advisable to create a component dedicated to truncating text and managing the display of the modal. Below, we’ll guide you through the steps to implement this solution effectively.

Step 1: Create the TruncateText Component

Here's how to structure the new TruncateTextComponent:

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

In this component:

Input Binding: We are using the @ Input decorator to allow text to be passed from a parent component.

Click Event Handling: The openModal method triggers when a user clicks on the truncated text, which will need to include logic to present the full text.

Step 2: Usage of the TruncateText Component

Once the component is defined, you can replace your existing code with this new approach. Here’s an example of how to use the TruncateTextComponent within your application:

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

Notes on Implementation

Handling Arrays: You'll need to ensure that text can handle both strings and arrays of strings appropriately. Depending on your application’s requirements, adjust the openModal function to format the text correctly when displaying it in a modal.

Modal Implementation: Integrate the modal implementation of your choice—whether it's through Angular Material dialogs, Bootstrap modals, or any other preferred method.

Conclusion

By transitioning from a traditional pipe to a dedicated component for truncating text, you not only simplify your code but also enhance the functionality of your application. This approach allows for efficient text management while improving interaction for end-users through the modal feature. Implementing a clean visual representation of long text, combined with the ability to view more details upon clicking, significantly enhances the user experience.

Now that you have a structured way to handle long text in Angular, you’re set to implement this feature in your applications seamlessly!