Detecting when a browser window is resized is a common task in web development, and can be accomplished using JavaScript. You can use the resize event to detect when a window is resized. You can attach an event listener to the window object and listen for the resize event, like so:

window.addEventListener('resize', function() {
  // do something when the window is resized
});

The function passed to the addEventListener method will be called whenever the window is resized.

You can also use jQuery to detect window resize,

$(window).on('resize', function(){
  // do something when the window is resized
});

It is also important to note that detecting window resize events can be resource-intensive, so it’s a good idea to use a debounce function to limit the number of times the event is fired.

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