How to use the Google Chrome browser to track and diagnose performance issues.
There are many aspects of a website that can impact the performance of a website. RAIL is a user-centric performance model that breaks down the user’s experience into key actions:
How users perceive websites, some key metrics:
I’ll attempt to demonstrate the basic Chrome debugging tools using a demo of a minor bug encountered in some basic code:
5for the first number .
1for the second number.
5 + 1 = 51.
That result is wrong. The result should be
6 NOT 51. This is a bug!
Hashes containing subsets of data can be very intimidating at first. Hopefully, this article will provide a clear, simple guide on how to access data, embedded deep within a hash.
For the purposes of the article, I have used an example of a free API provided by https://www.football-data.org.
I have also made the assumption that the reader is familiar with hashes, key-value pairs, arrays and nested hashes.
Fullstack Developer | London, UK