christiantakle

//-- If you understand closures - you know why this will always return true
function f(value) {
  return (function (copy) {
    return copy === value;
  }(value));
}

christiantakle

//-- http://allong.es/try/
tap     = allong.es.tap
flip    = allong.es.flip
curry   = allong.es.curry
compose = allong.es.compose
call    = allong.es.call
 
//-- square :: Int -> Int
function square(x) { return x*x }
 

christiantakle

// Ideas
//-- note (() -> IO), random function
//-- Maybe denote it with a lambda instead

//+ given :: (a -> Bool) -> (() -> IO) -> Maybe IO

//+ ifthen :: (a -> Bool) -> (() -> IO) -> Maybe IO
function ifthen(predicate, action) {
  if (predicate()) {
    action();

christiantakle

Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

christiantakle

var bind = Function.prototype.call.bind(Function.prototype.bind);
var call = bind(Function.prototype.call, Function.prototype.call);
var apply = bind(Function.prototype.call, Function.prototype.apply);

christiantakle

//-- Example 1 --------------------------------------------------------
//-- Note - We do not need to reference the data `email` when
//-- using a 'Point free style' of programming

//-- Note - `curry` is from Prelude. `compose` is from Oliver Steele --
//-- http://preludels.com/
//-- http://osteele.com/sources/javascript/functional/

//-- Imparative -------------------------------------------------------
var getUserName = function(email) {

christiantakle

#!/usr/bin/env ruby

tagname = ARGV.pop

def prompt(*args)
  print(*args)
  gets.chomp
end

if tagname.nil?

christiantakle

<?xml version="1.0"?>
<root>
    <item>
      <name>Programmer's Shift Keys</name>
      <!--
          Author: Carwin Young (@carwin)
          Last Updated: 2013.02.10
          v.1.0
          
          Programmer's Shift Keys

christiantakle

// Classic Javascript
function fib(n) {
  if(n === 0) { return 0 }
  if(n === 1) { return 1 }
  return fib(n-1) + fib(n-2)}

// Non-auto-curry
const mkCases = // :: Object Functions -> a -> b
  cases => key =>
    (cases[key]? cases[key] : cases["_"])(key)

christiantakle

var
  CHAR    = '*',
  NEWLINE = '\n',
  repeat =
    function repeat(c, n) {
      if(n === 0) { return ''; }
      return c + repeat(c, n-1);
    },

  lines =