How easily can you reason about your code?
# Introduction to cljs
- General purpose proggramming langiage (client + server) sode code
- compiled language, everyfeature is supported @runtime
- Functional programming with immutable PDS
# What a programming language suppoed to do?
- Able to model real world situations easily
- Concurrent, asynchronous prograaming (event syatem/ distributed)
- Manupulate collections,
map,reduce,filter - Pipeline data transformations
- Function compositions to form new Higher Order Functions
# Dependency Management ?
| style | description |
|---|---|
| old | project.clj, lein and figwheel-main |
| new | deps.edn, shadow-cljs |
npm install base64-js -S in :npm-deps
(ns foobar (:require
["base64-js" :as base64-js]))
# Build Tools
EDN
EDN is Clojure's JSON. It ignores dumb stuff like commas, and adds missing stuff like keywords and tagged data.
# Figwheel
# Why hate JS?
('b'+'a'+ +'a'+'a').toLowerCase() => banana? why?
[10, 10,10].map(parseInt) => [10, NaN, 2] why? bad api