The Usage of Now Deprecated jQuery .unload() Function

jQuery unload: Main Tips

• jQuery .unload() was one of the event methods used for working with event handlers.
• It attached a function to run when a jQuery window unload event occured.
• This method was removed in jQuery 3.0 version.

Syntax and Usage of .unload()

The .unload() jQuery method binds a function to a jQuery window unload event.

$(window).unload(() => {
    alert("See you next time!");
});

Note: jQuery .unload() was only used on window elements.

The syntax for .unload()() method is as follows:

$("selector").unload(function);

To trigger jQuery window.unload event, these actions had to be done:

• Typing a URL in the address bar, and pressing ENTER.
• Using the FORWARD or BACK buttons.
• Navigating to another link.
• Reloading the page.
• Closing the window, or the tab of the browser.

Note: the jQuery .unload() method was deprecated in jQuery version 1.8 and removed in 3.0.