apruden

@Grapes([
        @Grab('org.gebish:geb-core:0.12.0'),
        @Grab('org.seleniumhq.selenium:selenium-htmlunit-driver:2.45.0'),
        @Grab('org.seleniumhq.selenium:selenium-support:2.45.0')
])
import geb.Browser
import org.openqa.selenium.htmlunit.HtmlUnitDriver

def browser = new Browser(driver: new HtmlUnitDriver())

apruden

case class Heading(weight: Int, text: String)
case class Node(heading: Heading, children: List[Node])

/** Converts a list of input headings into nested nodes */
def toOutline(headings: List[Heading]): Node = {
  def buildNodes(input: List[Heading]): List[Node] = input match {
    case Nil => Nil
    case head :: Nil => Node(head, Nil) :: Nil
    case head +: tail =>
      tail.splitAt(tail.indexWhere(head.weight == _.weight)) match {

apruden

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

apruden

import sys, math


def get_bin(lat, lng):
    '''bin position'''
    lat = max(0, lat + 70) if lat < 0 else min(140, lat + 70)
    lng = lng + 180

    return int(2 * lat) + 280 * int(2 * lng)

apruden

case class Reader[C, A](g: C => A) {
  def apply(c: C) = g(c)
  def map[B](f: A => B): Reader[C, B] =
    (c:C) => f(g(c))
  def flatMap[B](f: A => Reader[C, B]): Reader[C, B] =
    (c:C) => f(g(c))(c)
}

object Reader {
  implicit def Reader[A,B](f: A => B): Reader[A,B] = Reader(f)