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With the release of jQuery 1. Like everything in jQuery, the official documentation for. The on event handler is designed to replace both the. It looks like this:. If you are currently using. This has the added benefit of allowing you to remove individual handlers later on using.
This was useful functionality for pages that dynamically generate or load content, but this method has been considered bad practice for some time now.
There are a number of problems with. Unfortunately there are still a large number of developers using. So what should you use instead for dynamically generated content? You should delegate your handlers using the new. This will attach your event to any anchors within the div container element, reducing the scope of having to check the whole document element tree and increasing efficiency.
Please note - the narrower your selector matches are, the more efficient your code will be. Although this example uses an anchor, try to avoid attaching a handler to every anchor.
It is better to give a class or id where possible. If you were using. If you wanted to remove a particular handler and you have created a separate handler function you can use:. As you are no longer using. As with live , die has been deprecated. I hope this article has provided a good starter and encouraged you to investigate these new additions.
Andi Smith is a web developer from London, United Kingdom. He likes to build highly performant websites which innovate with genuine value. Home About Blog Contact. It looks like this: