`window.onload vs $(document).ready(): Which Event Should I Use for JavaScript Execution?`

window.onload vs $(document).ready()

In JavaScript, we often need to execute code after the page has finished loading. There are two common ways to do this: using the window.onload event or the jQuery $(document).ready() method.

window.onload

The window.onload event fires when the entire page, including all images and other external resources, has finished loading. It is a standard DOM event and can be used with any JavaScript code. The downside of window.onload is that it can be slow, especially on pages with a lot of external content.

$(document).ready()

The jQuery $(document).ready() method is similar to window.onload, but it fires earlier, as soon as the HTML document has finished parsing. This makes it a better choice for code that needs to execute quickly, such as code that adds functionality to page elements.

Which Should I Use?

In general, you should use $(document).ready() unless you need to wait for all content to load before executing your code. $(document).ready() is faster and more specific to the purpose of executing code after the HTML document has loaded.

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