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Diffstat (limited to 'files/zh-cn/orphaned/web/api/body/blob')
-rw-r--r-- | files/zh-cn/orphaned/web/api/body/blob/index.html | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/files/zh-cn/orphaned/web/api/body/blob/index.html b/files/zh-cn/orphaned/web/api/body/blob/index.html deleted file mode 100644 index 4f09632307..0000000000 --- a/files/zh-cn/orphaned/web/api/body/blob/index.html +++ /dev/null @@ -1,137 +0,0 @@ ---- -title: Body.blob() -slug: orphaned/Web/API/Body/blob -tags: - - Body.blob() -translation_of: Web/API/Body/blob -original_slug: Web/API/Body/blob ---- -<p>{{APIRef("Fetch")}}</p> - -<p>{{domxref("Body")}} mixin的 <strong><code>blob()</code></strong>方法使用一个 {{domxref("Response")}} 流,并将其读取完成。它返回一个使用{{domxref("Blob")}}解决的promise。</p> - -<h2 id="句法">句法</h2> - -<pre class="brush: js">response.blob().then(function(myBlob) { - // do something with myBlob -});</pre> - -<h3 id="参数">参数</h3> - -<p>None.</p> - -<h3 id="返回值">返回值</h3> - -<p>A promise that resolves with a {{domxref("Blob")}}.</p> - -<h2 id="例子">例子</h2> - -<p>在我们 <a href="https://github.com/mdn/fetch-examples/tree/gh-pages/fetch-request">fetch request example</a> (run <a href="http://mdn.github.io/fetch-examples/fetch-request/">fetch request live</a>)中,我们使用<a href="/zh-CN/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/RequestFilter">Request.Request</a>构造方法创建了一个新的request对象,然后使用它来获取一个JPG文件。当fetch成功的时候,我们使用blob()从response中读取一个<a href="/zh-CN/docs/Web/API/Blob">Blob</a>对象,并使用<a href="/zh-CN/docs/Web/API/URL/createObjectURL">URL.createObjectURL</a> 将它放入一个object URL ,然后把URL设置为<a href="/zh-CN/docs/Web/HTML/Element/img">img</a>元素的src属性以显示这张图片。</p> - -<p> </p> - -<pre class="brush: js">var myImage = document.querySelector('img'); - -var myRequest = new Request('flowers.jpg'); - -fetch(myRequest) -.then(function(response) { - return response.blob(); -}) -.then(function(myBlob) { - var objectURL = URL.createObjectURL(myBlob); - myImage.src = objectURL; -}); -</pre> - -<h2 id="规范">规范</h2> - -<table class="standard-table"> - <tbody> - <tr> - <th scope="col">规范</th> - <th scope="col">状态</th> - <th scope="col">说明</th> - </tr> - <tr> - <td>{{SpecName('Fetch','#dom-body-blob','blob()')}}</td> - <td>{{Spec2('Fetch')}}</td> - <td> </td> - </tr> - </tbody> -</table> - -<h2 id="浏览器兼容性">浏览器兼容性</h2> - -<p>{{ CompatibilityTable}}</p> - -<div id="compat-desktop"> -<table class="compat-table"> - <tbody> - <tr> - <th>Feature</th> - <th>Chrome</th> - <th>Edge</th> - <th>Firefox (Gecko)</th> - <th>Internet Explorer</th> - <th>Opera</th> - <th>Safari (WebKit)</th> - </tr> - <tr> - <td>Basic support</td> - <td>{{ CompatChrome(42) }} [1]<br> - </td> - <td>{{CompatVersionUnknown}}</td> - <td>{{ CompatGeckoDesktop(39)}} [2]</td> - <td>{{ CompatNo }}</td> - <td> - <p>29 [3]</p> - </td> - <td>{{ CompatNo }}</td> - </tr> - </tbody> -</table> -</div> - -<div id="compat-mobile"> -<table class="compat-table"> - <tbody> - <tr> - <th>Feature</th> - <th>Android</th> - <th>Edge</th> - <th>Firefox Mobile (Gecko)</th> - <th>Firefox OS (Gecko)</th> - <th>IE Phone</th> - <th>Opera Mobile</th> - <th>Safari Mobile</th> - <th>Chrome for Android</th> - </tr> - <tr> - <td>Basic support</td> - <td>{{ CompatNo }}</td> - <td>{{CompatVersionUnknown}}</td> - <td>{{ CompatNo }}</td> - <td>{{ CompatNo }}</td> - <td>{{ CompatNo }}</td> - <td>{{ CompatNo }}</td> - <td>{{ CompatNo }}</td> - <td>{{ CompatNo }}</td> - </tr> - </tbody> -</table> -</div> - -<p>[1] Behind a preference in version 41.</p> - -<p>[2] Behind a preference starting with version 34.</p> - -<p>[3] Behind a preference in version 28.</p> - -<h2 id="另见">另见</h2> - -<ul> - <li><a href="/en-US/docs/Web/API/ServiceWorker_API">ServiceWorker API</a></li> - <li><a href="/en-US/docs/Web/HTTP/Access_control_CORS">HTTP access control (CORS)</a></li> - <li><a href="/en-US/docs/Web/HTTP">HTTP</a></li> -</ul> |