jonasporto

Elixir installation guide

Version numbers should be the ones you want. Here I do it with the last ones available at the moment of writing.

The simplest way to install elixir is using your package manager. Sadly, at the time of writing only Fedora shows the intention to keep its packages up to date. There you can simply sudo dnf install erlang elixir and you are good to go.

Anyway, if you intend to work with several versions of erlang or elixir at the same time, or you are tied to a specific version, you will need to compile it yourself. Then kerl and exenv are your best friends.

jonasporto

Chapter 1 - Creating Our Own Renderer

Rails provides an API that we can use to create our own renderers. In this chapter we explore the API as we modify the render() method to accept :pdf as an option and return a PDF created with Prawn.

To create a new plugin just run the following:

$ rails plugin new my_plugin

TODO Complete notes

jonasporto

def solution(x, arr)
  
  k = 0
  n = arr.length
  
  condition = -> (a) { a.eql? x}
 

jonasporto

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# 
# This is how I used it:
# $ cat ~/.bash_history | bash-history-to-zsh-history >> ~/.zsh_history

import sys


def main():

jonasporto

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

jonasporto

  class MyResource
    include HTTParty
    debug_output $stdout # <= will spit out all request details to the console
    
    #...
  end

jonasporto

Imprima os números de 1 a 100. Troque os números múltiplos de 5 por Peg, os múltiplos de 7 por car, e os múltiplos de 35 por Pegcar.

Em outras palavaras temos um lista de dados, que precisamos processar e gerar uma nova lista de dados, de acordo com a regra de negócio.

Um cenário ideal pra utilização do #map então segue uma primeira solução para o exercício.

result_a =  
	(1..100).map{ |n| 

jonasporto

// install sinon via npm
// npm install sinon --save-dev

// require sinon in your test/client_api.js
var sinon = require("sinon");

// add this test expectation
it("cover error", function (done) {

  var url = URL_ROOT + "/client";

jonasporto

A top-down look into Elixir (for Rubyists)

• Phoenix (as "Rails for Elixir")
  • Rails and Phoenix can get suspiciously similar
  • A code sample:
• controller.rb

jonasporto

{
    init: function(elevators, floors) {
        var upQueue = [], downQueue = [], pressedButtons = [];

        elevators.forEach(function(elevator) {
             
            console.log('max', elevator.maxPassengerCount());
            elevator.clearDestination = function() {
                this.destinationQueue = [];
                this.checkDestinationQueue();