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const Box = x => (
  {
    map: f => Box(f(x)),
    fold: f => f(x)
  }
);

const splitEvery = (list, n) => {
  const result = [];
  let idx = 0;

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Vim without NERD tree or CtrlP

I used to use NERD tree for quite a while, then switched to CtrlP for something a little more lightweight. My setup now includes zero file browser or tree view, and instead uses native Vim fuzzy search and auto-directory switching.

Fuzzy Search

There is a super sweet feature in Vim whereby you can fuzzy find your files using **/*, e.g.:

:vsp **/*<partial file name><Tab>

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;(function(context) {

  'use strict';

  function $( selector, scope ) {
    return $.qsa( selector, scope, true );
  }

  $['qsa'] = function( selector, scope, first ) {
    var e = ( scope || document).querySelectorAll( selector );

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function mapValues(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    result[key] = fn(obj[key], key);
    return result;
  }, {});
}

function pick(obj, fn) {
  return Object.keys(obj).reduce((result, key) => {
    if (fn(obj[key])) {

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localStorage.test = '';
var stores = new Stores('test');

var datas = [
  { name: 'Eric' },
  { name: 'Jean' },
  { name: 'Pablo' },
  { name: 'Palmer' },
  { name: 'Pepo' }

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Teste para projetos responsivos

##Problema Testar/verificar a disposição dos elementos de uma determinada página em determinadas resoluções de tela.

Solução

Executar captura de telas de acordo com os viewports definidos em um script, com a ajuda do PhantomJS.

Necessário ter o node e o npm instalados

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# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.box = "devPhp"
  config.vm.box_url = "http://files.vagrantup.com/precise64.box"

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function soma (a, b) {
    return a + b
}

module.exports = soma

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# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
  config.vm.box = "hellobits"
  config.vm.box_url = "http://hellobits.com/vagrant/hellobits.box"
  config.vm.synced_folder ".", "/Projects", id: "vagrant-root"
  # config.vm.network :private_network, ip: "192.168.50.2"

  forward_port = ->(guest, host = guest) do

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JavaScript Design Patterns

JavaScript Patterns Collection