Revision 447529 of PromiseResolver

<p>{{DOMRef()}}{{SeeCompatTable}}</p>
<p>The <code><strong>PromiseResolver</strong></code> interface represents a <a href="https://en.wikipedia.org/wiki/Futures_and_promises" title="https://en.wikipedia.org/wiki/Futures_and_promises"><em>f</em></a></p>
<h2 id="Properties">Properties</h2>
<p><em>No specific property.</em></p>
<h2 id="Methods">Methods</h2>
<p><em>Doesn't inherit any method.</em></p>
<dl>
  <dt>
    {{domxref("Promise.fulfill()")}}</dt>
  <dd>
    Appends fullfill and failure callbacks to the <code>Promise</code> and returns a new <code>Promise</code> resolving to the return value of the selected callback, fullfill or failure.</dd>
  <dt>
    {{domxref("Promise.resolve()")}}</dt>
  <dd>
    Appends a failure callback to the <code>Promise</code> and returns a new <code>Promise</code> resolving to the return value of the callback.</dd>
  <dt>
    {{domxref("Promise.reject()")}}</dt>
</dl>
<h2 id="Specification">Specification</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('DOM WHATWG', '#interface-promiseresolver', 'PromiseResolver')}}</td>
      <td>{{Spec2('DOM WHATWG')}}</td>
      <td>Initial definition</td>
    </tr>
  </tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</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</th>
      </tr>
      <tr>
        <td>Basic support</td>
        <td>{{CompatNo}}</td>
        <td>{{CompatGeckoDesktop(24)}} as <code>FutureResolver</code><br />
          {{CompatGeckoDesktop(25)}} as <code>PromiseResolver </code>[1]</td>
        <td>{{CompatNo}}</td>
        <td>{{CompatNo}}</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>IE Mobile</th>
        <th>Opera Mobile</th>
        <th>Safari Mobile</th>
      </tr>
      <tr>
        <td>Basic support</td>
        <td>{{CompatNo}}</td>
        <td>{{CompatGeckoMobile(24)}} as <code>FutureResolver</code><br />
          {{CompatGeckoMobile(25)}} as <code>PromiseResolver</code> [1]</td>
        <td>{{CompatNo}}</td>
        <td>{{CompatNo}}</td>
        <td>{{CompatNo}}</td>
      </tr>
    </tbody>
  </table>
</div>
<p>[1] Gecko 24 has an experimental implementation of <code>PromiseResolver</code>, under the initial name of <code>FutureResolver</code>. It got renamed to its final name in Gecko 25. To disabled, the preference <code>dom.promise.enabled</code> (in Gecko 24, <code>dom.future.enabled</code>) must be switched to <code>false</code>. Note that it is enabled by default except on B2G builds.</p>
<h2 id="See_also">See also</h2>
<ul>
  <li><a href="/en-US/docs/Web/API/Guide/Using_DOM_Promises" title="/en-US/docs/Web/API/Guide/Using_DOM_Promises">Using DOM promises</a></li>
  <li>Related DOM interfaces: {{domxref("Promise")}}</li>
</ul>