React and less
Modern frameworks for web developers
Aleksandra Wronska
Domain Web
react:
JavaScript library that was designed to render UI and respond to events.
Created by Facebook and Instagram people
Approach designed especially for complex applications that update its content constantly
REact practices:
No templates
... 
Reusable, composable and unit testable components
... 
react practices
No templates
Reusable, composable and unit testable components
Virtual DOM
react practices
No templates
Reusable, composable and unit testable components
Virtual DOM
Diffing changes
All good with w3schools
show/hide div
LESS CSS
Dynamic stylesheet language
Super set of CSS
structural CSS programming
LESS features
Variables
Mixins
Operations and functions
@import
Nesting
LESS is a framework,
it will eventually output just a
CSS file