What is an API?
Application Programming Interface.
It gives access to some other system. It could be a completely external interface.
Name a restful API
Ajax
What is AJAX?
We dynamically update different parts of the page by accessing url points that just contain partials.
Why would you want to work with restful API’s?
Got the capability to work with them, jquery can create all these http methods.
All of the modern web is intertwined in some way.