Using jQuery's $.ajaxSetup in pure JavaScript

I'm looking to rewrite a jQuery ajaxSetup function in vanilla JavaScript that will work across all browsers.

Essentially, I want the same functionality of presetting data for all future AJAX calls using jQuery, but written in pure JavaScript.


const xhr = new XMLHttpRequest();
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.setRequestHeader('_token', ajax_token);

So, I need this setup to be done in vanilla JavaScript, but will still be utilizing jQuery ajax for the rest of my code. Any suggestions on how to achieve this? Thank you!

javascriptajax

Answer №1

It is impossible.

The ajaxSetup function within jQuery operates by storing data in a specific location that other ajax methods in jQuery reference to determine if they should behave differently than the default settings.

ajaxSetup serves as the gateway for jQuery to store and access this data, making it an internal mechanism that cannot be accessed directly except through this entry point.

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