What is the difference between the `$(document).ready()` function and `$(window).load()` function in jQuery, and when would you use each one?

1 Answers
Answered by suresh

Understanding the Difference between $(document).ready() and $(window).load() in jQuery

When it comes to handling jQuery functions efficiently, it is crucial to differentiate between the $(document).ready() function and the $(window).load() function.

$(document).ready() Function:

The $(document).ready() function is used to execute JavaScript code as soon as the DOM is fully loaded. This means that it triggers the code when the DOM is ready, even if resources like images or external scripts are still being loaded.

$(window).load() Function:

On the other hand, the $(window).load() function will only execute JavaScript code once all the page's content, including images and external resources, has been fully loaded by the browser.

When to Use Each Function:

Use $(document).ready() when you need to manipulate DOM elements or execute code that does not rely on images or other external resources. This function ensures faster execution as it does not wait for all resources to be loaded.

On the other hand, utilize $(window).load() when your JavaScript code depends on the complete loading of all page resources such as images. This function is suitable when you need to work with resource-dependent elements.

Remember, understanding the difference between these two functions and knowing when to use each one can significantly optimize your jQuery code for better performance.

Answer for Question: What is the difference between the `$(document).ready()` function and `$(window).load()` function in jQuery, and when would you use each one?