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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
---
title: Storage.removeItem()
slug: Web/API/Storage/removeItem
translation_of: Web/API/Storage/removeItem
---
<p>{{APIRef("Web Storage API")}}</p>
<p>O método <code>removeItem()</code> da interface {{domxref("Storage")}}, quando passado um nome de chave, irá remover essa chave do armazenamento.</p>
<h2 id="Syntax">Syntax</h2>
<pre class="syntaxbox"><em>storage</em>.removeItem(<em>keyName</em>);</pre>
<h3 id="Parâmetros">Parâmetros</h3>
<dl>
<dt><em><u>keyName</u></em></dt>
<dd>A {{domxref("DOMString")}} contendo o nome da chave que você deseja remover.</dd>
</dl>
<h3 id="Retorno">Retorno</h3>
<p><em>Nenhum valor de retorno.</em></p>
<h2 id="Exemplo">Exemplo</h2>
<p>A função a seguir cria três itens de dados no armazenamento local, em seguida, remove o item "image".</p>
<pre class="brush: js">function populateStorage() {
localStorage.setItem('bgcolor', 'red');
localStorage.setItem('font', 'Helvetica');
localStorage.setItem('image', 'myCat.png');
localStorage.removeItem('image');
}</pre>
<div class="note">
<p><strong>Nota</strong>: Para ver o uso em um exemplo prático veja nosso <a href="https://github.com/mdn/web-storage-demo">Web Storage Demo</a>.</p>
</div>
<h2 id="Especificações">Especificações</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Especificação</th>
<th scope="col">Status</th>
<th scope="col">Comentários</th>
</tr>
<tr>
<td>{{SpecName('Web Storage', '#dom-storage-removeitem', 'removeItem()')}}</td>
<td>{{Spec2('Web Storage')}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="Compatibilidade">Compatibilidade</h2>
<p>{{ CompatibilityTable() }}</p>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari (WebKit)</th>
</tr>
<tr>
<td>localStorage</td>
<td>4</td>
<td>3.5</td>
<td>8</td>
<td>10.50</td>
<td>4</td>
</tr>
<tr>
<td>sessionStorage</td>
<td>5</td>
<td>2</td>
<td>8</td>
<td>10.50</td>
<td>4</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Phone</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>2.1</td>
<td>{{ CompatUnknown }}</td>
<td>8</td>
<td>11</td>
<td>iOS 3.2</td>
</tr>
</tbody>
</table>
</div>
<p>All browsers have varying capacity levels for both localStorage and sessionStorage. Here is a <a class="external" href="http://dev-test.nemikor.com/web-storage/support-test/" title="http://dev-test.nemikor.com/web-storage/support-test/">detailed rundown of all the storage capacities for various browsers</a>.</p>
<div class="note">
<p><strong>Note: </strong>since iOS 5.1, Safari Mobile stores localStorage data in the cache folder, which is subject to occasional clean up, at the behest of the OS, typically if space is short.</p>
</div>
<h2 id="Veja_também">Veja também</h2>
<p><a href="/en-US/docs/Web/API/Web_Storage_API/Using_the_Web_Storage_API">Usando a API Web Storage</a></p>
|
