Hello I am Ian Duffy
SENIOR SOFTWARE ENGINEER

Ian Duffy

Recent Articles

Web Performance - Prioritising User Experience ahead of Search Rankings

2 April 2025 7 mins read
Using Chrome New Performance Panel Landing Page In Dev Tools

14 February 2025 11 mins read
Looking how browsers choose the right image to load with srcset, dpr, and sizes

4 February 2025 6 mins read
Creating a theme switcher using View Transition

12 January 2025 4 mins read
Creating a Image Light Box using Web Components

18 November 2024 3 mins read
Common performance issue when using functions to get initial state for React Use State

3 October 2024 5 mins read
Handling Layout shift with img and picture tag

12 July 2024 4 mins read
Building Mobile Menu with the Popover API

15 May 2024 5 mins read
First Month of using Github Copilot

22 November 2023 5 mins read
Highlighting current section in the content bar

13 March 2023 4 mins read
Write better buttons with CSS Variables

8 March 2023 3 mins read

Skills

This is a list of the technologies and skills I often use and have experience with:

WEB PERFORMANCE.
HTML.
CSS.
JAVASCRIPT.
REACT.
NEXTJS.
JQUERY.
SCSS.
RUBY ON RAILS.
NODEJS.
TYPESCRIPT.
RESPONSIVE DESIGN.
ACCESSIBILITY.
CYPRESS.
RSPEC.
ASTRO.
TEST DRIVEN DEVELOPMENT.