Performance is a core part of the user experience on the web. When performance is poor, users don’t convert as often.

There are many ways to quantify web performance but the principle remains the same. First you measure to get a baseline, then analyze the results and then attempt to fix it. This cycle can repeat until you have a new baseline that you are happy with.

The Measure, Analyze and Fix cycle

The most important thing is to measure what actually matters to users. I am going to show you how to analyze and improve slow running JavaScript code. …

Richie McColl

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store