Скачать или смотреть How to Truncate Text Length Based on Window Size in JavaScript

Learn how to combine window resize events with text length truncation for select options using JavaScript and jQuery in this informative guide.
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Truncate Text Length Based on Window Size

If you're developing a web application where the visual presentation of select option boxes matters, you've probably run into the issue of lengthy text overflowing its container. This can make your interface look cluttered and unprofessional. To tackle this problem, we can use JavaScript (with jQuery) to dynamically truncate option text based on the window's width. Here's a step-by-step guide on how to implement this solution effectively.

The Problem

As users adjust their browser windows, we need to ensure that option text in select boxes doesn't exceed a certain length relative to the viewport size. Specifically, we want to:

Truncate option text if it exceeds a particular length

Adjust the truncation length based on the width of the browser window

For example, if the window width is less than 400px, truncate any text longer than 35 characters. If the width is between 451px and 600px, truncate anything over 50 characters. It’s crucial to ensure a clean and user-friendly experience across all devices.

The Solution

Step 1: Set Up Your HTML

Ensure you have select boxes set up in your HTML document. Here's a sample structure:

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

Step 2: Write Your JavaScript

Next, you’ll want to create a function to handle the truncation based on the window's width. Below is a simplified version of the jQuery code that accomplishes this task:

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

Step 3: Explanation of the Code

Event Binding: We start by binding our checkWidth function to the document ready and window resize events. This ensures the function is called when the page loads, or when the window is resized.

Check Width and Text Length: Inside the checkWidth function, we iterate over each option element. We check the length of the text in the option element and the current width of the window to apply the relevant truncation.

Truncation Logic: Depending on the viewport width, we apply different truncation lengths using substr(). This allows different layouts to maintain readability without overflow.

Conclusion

Implementing a solution to truncate text length based on window size not only improves the appearance of your select options but also enhances user experience. By following the steps outlined, you can easily ensure your text remains concise without sacrificing essential information. Feel free to modify the character limits and breakpoints according to your specific needs!

Ensuring that your web components dynamically adapt is a key aspect of modern web development and can lead to a smoother, more professional user interface.