Web app contest
Telegram held a development contest.
The task was to display a json data file in a web app as charts.
I was given the design files and 7 days, and a rule not to use any third party code.
What I did personally
Web app from png images in under a week
Chart panning, zooming and filtration
Animations and a ripple effect on buttons
Vanilla Javascript with no dependencies
7.2 kB gzipped size
Pixel-perfect copy of the task mockup
Day and Night themes
Tech I used
JavaScript, HTML, SVG, CSS, minifiers, Nginx
Looking back, instead of SVG, I should have taken the Canvas route. The app would have been snappier on huge datasets and low-end devices. Learnt a great deal.
