If you want to process and display data in a certain way, then you should use pipes instead of using or creating a function in a component.

This function is part of promises, which allow asynchronous programming. This function "Promise.any()" is used to return the value of promise as soon as one of the used promises are resolved.

You can use AJAX which allows you with the help of HTTPXMLObject and JavaScript to send data from the client to the server without the need to recreate the complete page.

This is an introduction tutorial on how to create a custom meta box for your post editor of your WordPress website.