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Jquery on window resize

javascript
debouncing
throttling
responsive-design
Alex KataevbyAlex Kataev·Jan 1, 2025
TLDR

Utilize jQuery's .on() method to handle window resize:

$(window).on('resize', function() { var containerHeight = $(window).height() + 3; // Why 3? Because it's a magic number... just kidding! Adjust as needed. 😉 // More resize logic... });

In this example, the code performs an action each time the browser window resizes. Implement debouncing and throttling techniques to optimize your code's performance and prevent excessive function calls. Make use of dynamic CSS adjustments or media queries for better performance and responsive design.

Optimize window resize events

Debouncing and Throttling

To handle window resize events more efficiently, apply either debouncing or throttling techniques. Debouncing executes a function after a certain delay in firing events, while throttling ensures the function calls at a steady frequency. Choose wisely depending on the context!

Enhancing code readability

Use named functions instead of anonymous functions to improve your code's readability. Named functions are also easy to reuse in different parts of your application.

Leveraging CSS media queries

For responsive design, use CSS media queries to adjust styles based on different window heights or widths. This approach is usually more efficient than handling these changes with JavaScript.

Handling resize without other libraries

You can use the native JavaScript window.onresize for resize events if underscore or lodash libraries are not on your stack. It may not be as robust, but it's potential for performance optimization is undeniable!

Employing performance optimization techniques

Methods like debounce are handy for optimizing the recalculation of costly styles or layout changes. By imposing a rate limit on your resize events, you can prevent frequently expensive operations, like adjusting the footer position, improving your app's performance significantly.

Embrace responsiveness

Developing dynamic adjustments

You may need to make dynamic adjustments in some scenarios. Using an event handler that triggers on both document ready and during a window resize ensures your layout remains intact.

Ensuring smart event handling

To prevent overlapping execution of your function, use interval checks and a boolean flag. Also, make sure all DOM elements load before attaching resize event handlers for a smooth adjustment performance.

Manipulating styles and layouts

Set CSS properties programmatically according to the dynamic containerHeight to achieve immediate and flexible visual changes.

Deepen your jQuery understanding

The jQuery event documentation is a goldmine for additional options and approaches to handling the window resize event. For more comprehensive insights, several online resources provide in-depth knowledge on this subject.