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Diffstat (limited to 'files/zh-cn/web/api/response/ok')
-rw-r--r-- | files/zh-cn/web/api/response/ok/index.html | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/files/zh-cn/web/api/response/ok/index.html b/files/zh-cn/web/api/response/ok/index.html new file mode 100644 index 0000000000..63448df311 --- /dev/null +++ b/files/zh-cn/web/api/response/ok/index.html @@ -0,0 +1,120 @@ +--- +title: Response.ok +slug: Web/API/Response/ok +translation_of: Web/API/Response/ok +--- +<div>{{APIRef("Fetch")}}{{SeeCompatTable}}</div> + +<p>{{domxref("Response")}} 接口的只读属性 <code><strong>ok</strong></code> 包含一个布尔值,表明响应是否成功(状态码在200-299范围内).</p> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox">var <var>myOK</var> = <var>response</var>.ok;</pre> + +<h3 id="值">值</h3> + +<p> {{domxref("Boolean")}}.</p> + +<h2 id="示例">示例</h2> + +<p>In our <a href="https://github.com/mdn/fetch-examples/tree/gh-pages/fetch-response">Fetch Response example</a> (see <a href="http://mdn.github.io/fetch-examples/fetch-response/">Fetch Response live</a>) we create a new {{domxref("Request")}} object using the {{domxref("Request.Request","Request()")}} constructor, passing it a JPG path. We then fetch this request using {{domxref("GlobalFetch.fetch","fetch()")}}, extract a blob from the response using {{domxref("Body.blob")}}, create an object URL out of it using {{domxref("URL.createObjectURL")}}, and display this in an {{htmlelement("img")}}.</p> + +<p>Note that at the top of the <code>fetch()</code> block we log the response <code>ok</code> value to the console.</p> + +<pre class="brush: js">var myImage = document.querySelector('img'); + +var myRequest = new Request('flowers.jpg'); + +fetch(myRequest).then(function(response) { + console.log(response.ok); // returns true if the response returned successfully + 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">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('Fetch','#dom-response-ok','ok')}}</td> + <td>{{Spec2('Fetch')}}</td> + <td>Initial definition</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>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari (WebKit)</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatChrome(42)}}<br> + {{CompatChrome(41)}}<sup>[1]</sup></td> + <td>{{CompatGeckoDesktop(39)}}<br> + 34<sup>[1]</sup></td> + <td>{{CompatNo}}</td> + <td> + <p>29<br> + 28<sup>[1]</sup></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>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>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<p>[1] This feature is implemented behind a preference.</p> + +<h2 id="相关链接">相关链接</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> |