pbalduino

[09:50] == pbalduino [b3a45769@gateway/web/freenode/ip.179.164.87.105] has joined #clj-br
[09:50] <pbalduino> mario-goulart: bom dia
[09:51] <mario-goulart> Alô pbalduino.  Bom dia.
[09:56] == andrewhr [[email protected]] has joined #clj-br
[09:56] == andreanastacio [[email protected]] has joined #clj-br
[10:01] <mario-goulart> andreanastacio e andrewhr: vocês são a mesma pessoa? :-)
[10:02] <andreanastacio> hehe nao
[10:02] <andreanastacio> trabalhamos juntos
[10:02] <mario-goulart> !
[10:02] <mario-goulart> Bacana. :-)

pbalduino

;annotation syntax

(import [java.lang.annotation Retention RetentionPolicy Target ElementType]
        [javax.xml.ws WebServiceRef WebServiceRefs])
(definterface Foo (foo []))

;annotation on type
(deftype ^{Deprecated true 
            Retention RetentionPolicy/RUNTIME 
            javax.annotation.processing.SupportedOptions ["foo" "bar" "baz"]

pbalduino

(defn better-count [lista]    ; 1
  (loop [lista lista          ; 2
         items 0]             ; 3
    (if (empty? lista)        ; 4
      items                   ; 5
      (recur (rest lista)     ; 6
             (inc items)))))  ; 7

;; ----------------------------
;; o jeito errado:

pbalduino

(loop [fs [] 
       nums (range 2 23)]
  (let [f (first nums)]
    (if (empty? nums)
      fs
      (recur (conj fs f)
             (filter #(not= 0 (mod % f)) nums)))))

pbalduino

private void btnCalcular_Click(object sender, EventArgs e)
{
  decimal[] notas = new decimal[4];

  notas[0] = txtNota0.Value;
  notas[1] = txtNota1.Value;
  notas[2] = txtNota2.Value;
  notas[3] = txtNota3.Value;

  Array.Sort(notas);

pbalduino

private void btnCalcular_Click(object sender, EventArgs e)
{
  decimal[] notas = {txtNota0.Value, txtNota1.Value, txtNota2.Value, txtNota3.Value};

  lblMenor.Text = notas.Min().ToString();
  lblMaior.Text = notas.Max().ToString();
  lblMedia.Text = notas.Average().ToString();
}

pbalduino

private void btnCalcular_Click(object sender, EventArgs e)
{
  decimal maior = 0;
  decimal menor = 99;

  if (txtNota0.Value < menor) menor = txtNota0.Value;
  if (txtNota1.Value < menor) menor = txtNota1.Value;
  if (txtNota2.Value < menor) menor = txtNota2.Value;
  if (txtNota3.Value < menor) menor = txtNota3.Value;

pbalduino

private void btnCalcular_Click(object sender, EventArgs e)
{
  // maior
  if (txtNota0.Value > txtNota1.Value && txtNota0.Value > txtNota2.Value && txtNota0.Value > txtNota3.Value)
  {
      lblMaior.Text = txtNota0.Value.ToString();
  }
  else if (txtNota1.Value > txtNota0.Value && txtNota1.Value > txtNota2.Value && txtNota1.Value > txtNota3.Value)
  {
      lblMaior.Text = txtNota1.Value.ToString();

pbalduino

if(localStorage["demo.isRunning"] !== "true") {
  alert("Let's write something on the local storage");

  localStorage["demo.isRunning"] = true;
  localStorage["demo.value"] = "It works!";

  window.location.reload();
} else {
  alert("Value of stored value is '" + localStorage["demo.value"] + "'");

pbalduino

;; criei um arquivo chamado gen.clj
(ns capitulo08.gen
	(:gen-class 
		:name "capitulo08.Uia"
		:methods [[hello [] void]]))

(defn -hello [this]
	(println "Olá!"))

;; agora no REPL: