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JavaScript

ale8k
ale8k
8,299 Points
Posted by ale8k
ale8k
8,299 Points

My brain is going to pop!

Hi all!

I’m on the Front-End developer track and AJAX is used with jQuery but I don’t want to use jQuery for my AjAX requests? And treehouse have no other resources to learn.. I tried to look at fetch but I’m having a really hard time understanding promises.

What can I do? Ale8k.

1 Answer

Brendan Whiting
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Brendan Whiting
Front End Web Development Techdegree Graduate 84,738 Points
Brendan Whiting
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,738 Points

I think it's pretty helpful to try building your own Promise from scratch. There are a few tutorials out there to do that, but this one I think is good: https://levelup.gitconnected.com/understand-javascript-promises-by-building-a-promise-from-scratch-84c0fd855720

In order to follow along with this, an important prerequisite is understanding that functions are objects and you can pass functions as arguments. This is something you've probably done a bit by passing in callbacks.

JQuery is a bit dated but it's still out there. It's not a terrible thing to learn. You can also go the the Library, look at all the JavaScript courses and pick off a few that might help you understand what's going on. There's a course on callbacks, courses on ES6 and arrow functions, a course on closures, a workshop on fetch, a workshop on promises.