JavaScript

• It's actually good now
   
• … and the only real choice in the web browser
   
• Tools can be written in JS!
   
• Servers too!

It's actually good now!

const numbers = [1, 2, 3, 4, 5, 6]

const evenNumbers = numbers.filter(
  n => n % 2 === 0
);

• Amazing module ecosystem
   
• Open Source mindset
   
• Web, mobile, desktop, server, tooling, and DB use the same language!
   
• Browser vendors got their shit together
   
• Chrome DevTools is life

Browser = JS

• … or compiled-to-JS
   
• WebAssembly will be fun

Tools written in JS‽

• Everyone has Node installed now
  
  … or you can build a native executable
   
• Huge open source community
  
  … and not in the Java way
   
• https://hackernoon.com/the-ultimate-list-of-javascript-tools-e0a5351b98e3

SERVERS though?

yeeeah

https://nodejs.org/en/foundation/members/

React!

import React from 'react'
import ReactDOM from 'react-dom'

const Greeting = ({ name }) => (
  <div>
    <p>Hello, {name}!<p>
  </div>
)

const container = document.getElementById('container')

ReactDOM.render(
  <Greeting name="Martin" />,
  container
)

HTML + CSS + JS

Bootstrap