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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>reveal.js</title>
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/nu_gabriel.css">
<!-- Theme used for syntax highlighting of code -->
<link rel="stylesheet" href="lib/css/monokai.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<h2>Introdução a Programação Funcional em Clojure</h2>
<p class="purple">Gabriel Pitali</p>
<aside class="notes">
Explicar o assunto da palestra
</aside>
</section>
<section>
<h3>Clojure</h3>
<img class="plain" style="width: 400px;height: 400px;" src="images/clojure.png"/>
</section>
<section>
<p>dialeto Lisp</p>
<p class="fragment fade-up">Lisp => List Processing</p>
<aside class="notes">
- Sintaxe
</aside>
</section>
<section>
<p>funcional</p>
</section>
<section>
<p>Java Virtual Machine</p>
<p>(JVM)</p>
<aside class="notes">
INTRODUZIR PROXIMO SLIDE ANTES DE PASSAR
</aside>
</section>
<section>
<p>como eu uso funções em Clojure?</p>
</section>
<section>
<pre class="medium"><code data-trim data-noescape class="clojure">
(nome-funcao parametro1 parametro2 parametro3)
</code></pre>
<div class="container">
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col">
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(* 2 3)
=> 6
</code></pre>
</div>
<div class="col"></div>
</div>
<div class="container">
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(= 5 5)
=> true
</code></pre>
</div>
<div class="col">
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(= 0 5)
=> false
</code></pre>
</div>
<div class="col"></div>
</div>
</section>
<section>
<div class="container">
<div class="col">
<pre class="fragment fade-up" data-fragment-index="8"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="6"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col"></div>
</div>
<div class="container">
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="3"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="4"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<aside class="notes">
INTRODUZIR PROXIMO SLIDE ANTES DE PASSAR
</aside>
</div>
<p>funções puras</p>
<div class="container">
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="1"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="2"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col"></div>
</div>
<div class="container">
<div class="col">
<pre class="fragment fade-up" data-fragment-index="5"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
<div class="col"></div>
<div class="col"></div>
<div class="col">
<pre class="fragment fade-up" data-fragment-index="7"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
</div>
</div>
</section>
<section>
<p>def</p>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(def A 10)
</code></pre>
</section>
<section>
<p>funções de "primeira classe"</p>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(def soma +)
</code></pre>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(+ 1 2)
=> 3
</code></pre>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(soma 1 2)
=> 3
</code></pre>
</section>
<section>
<p>defn</p>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(defn <span class="fragment highlight-current-white">soma10</span> <span class="fragment highlight-current-white">[x]</span>
<span class="fragment highlight-current-white">(+ 10 x)</span>)
</code></pre>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(soma10 2)
=> 12
</code></pre>
<aside class="notes">
INTRODUZIR PROXIMO SLIDE ANTES DE PASSAR |||| FALAR SOBRE NTI E PROGRAD
</aside>
</section>
<section>
<p>ta, mas como eu faço algo útil?</p>
</section>
<section>
<img class="plain" style="" src="images/portal_export.png"/>
</section>
<section>
<p>disciplinas</p>
<pre class="small"><code class="stretch" data-trim data-noescape class="clojure">
(def disciplinas
[{:conceito "C"
:codigo "BCN0404-13"
:situacao "Aprovado"
:ano 2014
:disciplina "Geometria Analítica"
:periodo "2"
:categoria "Obrigatória"
:creditos 3}
...
{:conceito "C"
:codigo "ESTI015-17"
:situacao "Aprovado"
:ano 2018
:disciplina "Comunicações Móveis"
:periodo "2"
:categoria "Opção Limitada"
:creditos 4}])
</code></pre>
</section>
<section>
<p>disciplina</p>
<pre><code data-trim data-noescape class="clojure">
{:conceito "C"
:codigo "BCN0404-13"
:situacao "Aprovado"
:ano 2014
:disciplina "Geometria Analítica"
:periodo "2"
:categoria "Obrigatória"
:creditos 3}
</code></pre>
</section>
<section>
<p>como listar somente o nome das disciplinas?</p>
</section>
<section>
<pre class="small"><code data-trim data-noescape class="clojure">
{:conceito "C"
:codigo "BCN0404-13"
:situacao "Aprovado"
:ano 2014
:disciplina "Geometria Analítica"
:periodo "2"
:categoria "Obrigatória"
:creditos 3}
</code></pre>
<pre class="fragment fade-up medium" data-fragment-index="2"><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">:disciplina</span> {:conceito "C"
:codigo "BCN0404-13"
:situacao "Aprovado"
:ano 2014
:disciplina "Geometria Analítica"
:periodo "2"
:categoria "Obrigatória"
:creditos 3})
</code></pre>
<pre class="fragment fade-up" data-fragment-index="1"><code data-trim data-noescape class="clojure">
=> "Geometria Analítica"
</code></pre>
</section>
<section>
<p>beleza, mas quero o nome de TODAS</p>
<p class="fragment fade-up">~ faz logo um "for" ai! ~</p>
</section>
<section data-background-image="images/map_meme.jpg" data-background-size="contain"></section>
<section>
<p>map</p>
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">map</span> <span class="fragment highlight-current-white">:disciplina</span> <span class="fragment highlight-current-white">disciplinas</span>)
</code></pre>
<pre class="small"><code data-trim data-noescape class="clojure">
=> ("Geometria Analítica"
"Base Experimental das Ciências Naturais"
"Estrutura da Matéria"
"Origem da Vida e Diversidade dos Seres Vivos"
"Bases Computacionais da Ciência"
...
"Eletrônica Analógica Aplicada"
"Processamento Digital de Sinais"
"Comunicações Móveis")
</code></pre>
</section>
<section>
<p>como filtrar só as disciplinas que fiz em 2017?</p>
</section>
<section>
<p>foi em 2017?</p>
<pre class="medium"><code data-trim data-noescape class="clojure">
(= 2017
(<span class="fragment highlight-current-white">:ano</span> {:conceito "C"
:codigo "ESTI005-13"
:situacao "Aprovado"
:ano 2017
:disciplina "Sinais Aleatórios"
:periodo "1"
:categoria "Opção Limitada"
:creditos 4}))
</code></pre>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
(= 2017
2017)
</code></pre>
<pre class="fragment fade-up"><code data-trim data-noescape class="clojure">
=> true
</code></pre>
</section>
<section>
<p>quero uma função pra isso!</p>
<pre class="medium"><code data-trim data-noescape class="clojure">
(= 2017
(:ano {:conceito "C"
:codigo "ESTI005-13"
:situacao "Aprovado"
:ano 2017
:disciplina "Sinais Aleatórios"
:periodo "1"
:categoria "Opção Limitada"
:creditos 4}))
</code></pre>
<pre><code data-trim data-noescape class="clojure">
(defn ano-2017? [disciplina]
(= 2017
(:ano disciplina)))
</code></pre>
</section>
<section>
<p>mas assim fica uma bagunça</p>
<pre><code data-trim data-noescape class="clojure">
(defn ano-2017? [disciplina]
(= 2017
(:ano disciplina)))
</code></pre>
<div class="fragment fade-up">
<p>let</p>
<pre><code data-trim data-noescape class="clojure">
(defn ano-2017? [disciplina]
(<span class="fragment highlight-current-white">let</span> <span class="fragment highlight-current-white">[ano (:ano disciplina)]</span>
(= <span class="fragment highlight-current-white">ano</span> 2017)))
</code></pre>
</div>
</section>
<section>
<p>filter</p>
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">filter</span> <span class="fragment highlight-current-white">ano-2017?</span> <span class="fragment highlight-current-white">disciplinas</span>)
</code></pre>
<pre class="small"><code class="stretch" data-trim data-noescape class="clojure">
=> ({:conceito "C"
:codigo "BCK0104-15"
:situacao "Aprovado"
:ano 2017
:disciplina "Interações Atômicas e Moleculares"
:periodo "1"
:categoria "Obrigatória"
:creditos 3}
...
{:conceito "C"
:codigo "ESTI003-17"
:situacao "Aprovado"
:ano 2017
:disciplina "Transformadas em Sinais e Sistemas Lineares"
:periodo "3"
:categoria "Opção Limitada"
:creditos 4})
</code></pre>
</section>
<section data-background-image="images/prograd_meme.jpg" data-background-size="contain"></section>
<section>
<p>como remover as reprovações?</p>
</section>
<section>
<p>reprovou?</p>
<pre><code data-trim data-noescape class="clojure">
(defn reprovou? [disciplina]
(let [situacao (:situacao disciplina)]
(= situacao "Reprovado")))
</code></pre>
</section>
<section>
<p>remove</p>
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">remove</span> <span class="fragment highlight-current-white">reprovou?</span> <span class="fragment highlight-current-white">disciplinas</span>)
</code></pre>
<pre class="small"><code class="stretch" data-trim data-noescape class="clojure">
=> ({:conceito "C"
:codigo "BCN0404-13"
:situacao "Aprovado"
:ano 2014
:disciplina "Geometria Analítica"
:periodo "2"
:categoria "Obrigatória"
:creditos 3}
...
{:conceito "C"
:codigo "ESTI015-17"
:situacao "Aprovado"
:ano 2018
:disciplina "Comunicações Móveis"
:periodo "2"
:categoria "Opção Limitada"
:creditos 4})
</code></pre>
</section>
<section>
<p>quantos créditos eu já fiz?</p>
</section>
<section>
<p>map</p>
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">map</span> <span class="fragment highlight-current-white">:creditos</span> <span class="fragment highlight-current-white">disciplinas</span>)
</code></pre>
<pre><code data-trim data-noescape class="clojure">
=> (3 3 3 3 2 4 5 3 3 4 4 5 5 4 5 3 4 3 3
2 5 2 4 4 3 4 4 4 2 4 6 3 3 2 3 4 3 4
4 4 5 4 4 4 3 5 4 4 5 4 4 2 5 4 4 4 4)
</code></pre>
</section>
<section>
<p>reduce</p>
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">reduce</span> <span class="fragment highlight-current-white">+</span> <span class="fragment highlight-current-white">[1 2 3]</span>)
</code></pre>
<pre><code data-trim data-noescape class="clojure">
=> 6
</code></pre>
<div class="fragment fade-up">
<pre><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white">reduce</span> <span class="fragment highlight-current-white">+</span> <span class="fragment highlight-current-white">(map :creditos disciplinas)</span>)
</code></pre>
<pre><code data-trim data-noescape class="clojure">
=> 212
</code></pre>
</div>
</section>
<section>
<pre class="small2"><code data-trim data-noescape class="clojure">
(<span class="fragment highlight-current-white" data-fragment-index="3">reduce</span> <span class="fragment highlight-current-white" data-fragment-index="4">+</span> <span class="fragment highlight-current-white" data-fragment-index="2">(map :creditos <span class="fragment highlight-current-white" data-fragment-index="1">(remove reprovou? disciplinas)</span>)</span>)
</code></pre>
<pre><code data-trim data-noescape class="clojure">
=> 197
</code></pre>
<p class="fragment fade-up" data-fragment-index="5">thread</p>
<pre class="fragment fade-up" data-fragment-index="5"><code data-trim data-noescape class="clojure">
(->> <span class="fragment highlight-current-white" data-fragment-index="6">disciplinas</span>
<span class="fragment highlight-current-white" data-fragment-index="7">(remove reprovou?)</span>
<span class="fragment highlight-current-white" data-fragment-index="8">(map :creditos)</span>
<span class="fragment highlight-current-white" data-fragment-index="9">(reduce +)</span>)
</code></pre>
<pre class="fragment fade-up" data-fragment-index="5"><code data-trim data-noescape class="clojure">
=> 197
</code></pre>
</section>
<section>
<h2>dúvidas?</h2>
</section>
<section>
<h2>Obrigado!</h2>
<p class="purple">sou.nu/vagasnu</p>
<p>github.com/pitalig</p>
<p>linkedin.com/in/gpitali/</p>
<p>facebook.com/gabrielpitali</p>
</section>
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