Angular Response.json() not documented
<p>I see Response.json() method being used a lot, and I'm using it myself, but either I'm missing something or the documentation for the Response class is incorrect.</p>

<p>Example:</p>

<pre><code>getCurrentTime() {
    return this._http.get('http://date.jsontest.com/')
        .map((res:Response) =&gt; res.json())
}
</code></pre>

<p>On the Angular site at <a href="https://angular.io/docs/ts/latest/api/http/index/Response-class.html" rel="noreferrer">https://angular.io/docs/ts/latest/api/http/index/Response-class.html</a>, I don't see the method as a member of the Response class.</p>

<p>If .json is <em>not</em> a member of the Response class, can someone point me in the direction of understanding how this works.</p>

<p>Or if the documentation is wrong, someone please say so.</p>

<p>Thanks in advance.</p>