The provided JavaScript code executes a particular function (`PayMethodsTbl`) once...

The provided JavaScript code executes a particular function (PayMethodsTbl) once the DOM (Document Object Model) is fully loaded and ready, meaning the HTML structure of the webpage is completely built by the browser.

Here's a breakdown of the code:

1. document.ready:

   • This ensures that the JavaScript code inside it runs only after the webpage's DOM is fully loaded. However, note that the syntax document.ready(...) is not standard in plain JavaScript. It is most likely part of a library like jQuery (where $(document).ready(...) is the standard approach).

2. PayMethodsTbl():

   • This is a function call. The PayMethodsTbl() function is likely a custom-defined function (not shown in the code snippet). It will be executed once the DOM is ready. The function presumably performs some task related to "payment methods" based on its name, such as rendering a table, initializing data, or interacting with a payment-related user interface.

In summary, this code makes sure that when the webpage is fully loaded, the PayMethodsTbl function gets invoked. You would need to look at the PayMethodsTbl function's definition to understand its specific behavior.