JavaScript XML HTTP Requests (xhr) are provided by browsers for performing
asynchoronous network operations (a.k.a. AJAX in jQuery). In jQuery, $.ajax
returns something called a "deferred object" that behaves a lot like a promise.
In this training, we create our Promise interface for xhr using native promises
and native xhr.
- Familiarity with jQuery
$.ajax
. - ga-wdi-boston/node-api-promises
By the end of this, developers should be able to:
- Compare Promises with jQuery Deferred objects.
- Fork and clone this repository.
- Install dependencies with
npm install
.
We'll use the library-api we
used when first learning about $.ajax
to handle requests.
Let's examine and run the code in assets/scripts/xhr.js
.
Then let's do the same with assets/scripts/xhr-promises.js
.
List the differences and similarities between XMLHttpRequest
and
jQuery.ajax
.
Could you build a simplified version of $.ajax
based on the code in
assets/scripts/xhr-promises.js
.
- All content is licensed under a CCBYNCSA 4.0 license.
- All software code is licensed under GNU GPLv3. For commercial use or alternative licensing, please contact legal@ga.co.