How to Properly Truncate Text in Angular's Popup with TypeScript

Discover effective solutions to truncate lengthy text in Angular popup components without CSS. Explore our tips to keep your UI clean and user-friendly.
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How to Properly Truncate Text in Angular's Popup with TypeScript

As developers, we often come across scenarios where text might exceed the available space, making our user interfaces cluttered or hard to read. A common example of this issue arises when working with popups in Angular applications. Specifically, the need to truncate lengthy text can lead to questions about how to implement this effectively, especially within a TypeScript readonly template.

The Problem

You are working with an Angular application where a popup box displays information. However, the text is being sourced programmatically, not from an HTML file, raising the challenge of truncating text dynamically. The specific field of concern in your case is the "Other" field, which could potentially contain lengthy strings of text.

Here’s a simplified version of the code creating the popup:

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

Your goal is to truncate the content of the "other" field, ensuring it remains user-friendly and visually appealing. Let’s explore two main solutions to tackle this problem.

Solutions to Truncate Text in Your Popup

1. Using a Custom Class for CSS

One approach to manage text overflow is to apply a custom CSS class. This involves modifying the component to include class styles that dictate how text will appear, specifically when it exceeds a certain length.

Steps to Implement

Update your PopupComponent: Create a class within your CSS file for truncating text.

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

Modify the Template Code: In the template where the "Other" field is being set, apply the custom CSS class.

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

2. Truncating the Value Before Passing It In

If modifying the existing PopupComponent is not preferred or feasible, another strategy is to manipulate the text value before sending it to the template. This can be done by shortening the string and appending an ellipsis (...) to indicate truncation.

Steps to Implement

Define the Value and Truncation Logic:
Here, you'll determine how much text to display and add the ellipsis if necessary.

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

Conclusion

Both methods—applying a custom CSS class or truncating the text before including it in the template—provide effective solutions to the issue of long text in your Angular popup. Depending on your situation and preferences, one method may suit your project better than the other.

By following the steps outlined above, you can maintain a clean and usable interface while ensuring that users have a pleasant experience interacting with your application.

Always remember, a well-structured and concise text display enhances usability and readability, making it a crucial aspect of your design considerations!