DrBoolean

const daggy = require('daggy');
const {foldMap} = require('pointfree-fantasy')
const {concat, toUpper, prop, identity, range, compose} = require('ramda');

// Contravariant functors usually have this shape F(a -> ConcreteType).
// In other words, some type holding a function which is parametric on its input, but not output.
// They don't always have that shape, but it's a good intuition
// Covariant functors are what we're used to, which are parametric in their output
//================================================================

tonymorris

case class Tree[A](root: A, forest: List[Tree[A]]) {
  def map[B](f: A => B): Tree[B] =
    coflatMap(t => f(t.copoint))

  // categorical dual to canonical "flatMap"
  def coflatMap[B](f: Tree[A] => B): Tree[B] = {
    import Tree.unfoldTree
    unfoldTree(this, (a: Tree[A]) => (f(a), a.forest))
  }

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

steveclarke

Capybara

save_and_open_page

Matchers

have_button(locator)

Integralist

/*
 * Scaffolding
 * Basic and global styles for generating a grid system, structural layout, and page templates
 * ------------------------------------------------------------------------------------------- */

.container
Sets a width of 940px which also centres the content (clears floated elements before/after)

.container-fluid
Sets a minimum width of 940px (clears floated elements before/after)

tonious

/* Read this comment first: https://gist.github.com/tonious/1377667#gistcomment-2277101
 * 2017-12-05
 * 
 *  -- T.
 */

#define _XOPEN_SOURCE 500 /* Enable certain library functions (strdup) on linux.  See feature_test_macros(7) */

#include <stdlib.h>
#include <stdio.h>