PHP 7 Programming Blueprints

Introduction to event loop and ReactiveX

The best way to get acquainted with event loop is through a popular library in the JavaScript world, that is, jQuery.

If you have experience working with jQuery, you can simply create (or chain) events to a simple DOM selector and then write code to handle those specific events. For example, you could create an onClick event by attaching it to a specific link and then code what will happen when that link is clicked.

If you're familiar with jQuery, the code to control a link that has the ID someLink would look something like the following:

HTML:

< a href="some url" id="someLink"> 

JavaScript:

$("#someLink").on('click', function() { 
   //some code here 
}); 

In the preceding code snippet, every time jQuery finds an ...