FTT-JavaScript/aulajs11.html at master · danielscarvalho/FTT-JavaScript · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
<!DOCTYPE html>
<html>
    <head>
        <title>JavaScript Aula 11</title>
        <script>
            var contador = 100;  //Variável global

            function novoItem() {

                var li = document.createElement("li");

                li.innerHTML = "Item " + contador;

                if(contador % 2 == 0) {
                    var lista = document.getElementById("listaPares");

                } else {
                    var lista = document.getElementById("listaImpares");
                }

                lista.appendChild(li);

                contador++;

            }

            function limpaItens() {
                document.getElementById("listaPares").innerHTML = '';
                document.getElementById("listaImpares").innerHTML = '';
            }
        </script>
    </head>
    <body>
        <h1>JavaScript Aula 11</h1>
        <h2>if</h2>
        <button onclick="novoItem();">Novo Item</button>
        <button onclick="limpaItens();">Limpa Itens</button>

        <ol id="listaPares" style="width: 50%; background-color: aqua">
        </ol>

        <ol id="listaImpares" style="width: 50%; background-color: aqua">
        </ol>
    </body>
</html>