bitmessage-js/docs/module-bitmessage_structs.S...

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    <title>JSDoc: Class: ServicesBitfield</title>

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    <h1 class="page-title">Class: ServicesBitfield</h1>


<section>

<header>

        <h2>
            <span class="ancestors"><a href="module-bitmessage_structs.html">bitmessage/structs</a>.</span>

        ServicesBitfield
        </h2>


</header>

<article>
    <div class="container-overview">


    <h4 class="name" id="ServicesBitfield"><span class="type-signature"></span>new ServicesBitfield<span class="signature">(buf<span class="signature-attributes">opt</span>, opts<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>


<div class="description">
    <p>Service features bitfield (MSB 0).</p>
</div>


    <h5>Parameters:</h5>


<table class="params">
    <thead>
    <tr>

        <th>Name</th>


        <th>Type</th>


        <th>Attributes</th>


        <th class="last">Description</th>
    </tr>
    </thead>

    <tbody>


        <tr>

                <td class="name"><code>buf</code></td>


            <td class="type">


<span class="param-type">Buffer</span>


            </td>


                <td class="attributes">

                    &lt;optional><br>


                </td>


            <td class="description last"><p>A 8-byte bitfield buffer (will be created if
not provided or will be copied if <code>opts.copy</code> is <code>true</code>)</p></td>
        </tr>


        <tr>

                <td class="name"><code>opts</code></td>


            <td class="type">


<span class="param-type">Object</span>


            </td>


                <td class="attributes">

                    &lt;optional><br>


                </td>


            <td class="description last"><p>Options</p></td>
        </tr>


    </tbody>
</table>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line957">line 957</a>
    </li></ul></dd>


    <dt class="tag-see">See:</dt>
    <dd class="tag-see">
        <ul>
            <li><a href="https://bitmessage.org/wiki/Protocol_specification#version">https://bitmessage.org/wiki/Protocol_specification#version</a></li>
        </ul>
    </dd>


</dl>


    <h5>Example</h5>

    <pre class="prettyprint"><code>var ServicesBitfield = require("bitmessage").structs.ServicesBitfield;
var services = ServicesBitfield().set(ServicesBitfield.NODE_NETWORK);
console.log(services.get(ServicesBitfield.NODE_NETWORK));  // true
console.log(services.get(15));  // false</code></pre>


    </div>


        <h3 class="subsection-title">Members</h3>


<h4 class="name" id=".NODE_GATEWAY"><span class="type-signature">(static, constant) </span>NODE_GATEWAY<span class="type-signature"> :number</span></h4>


<div class="description">
    <p>Bit index indicating node which can work as a WebSocket gateway for
web/mobile clients (proposal feature).</p>
</div>


    <h5>Type:</h5>
    <ul>
        <li>

<span class="param-type">number</span>


        </li>
    </ul>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line1003">line 1003</a>
    </li></ul></dd>


    <dt class="tag-see">See:</dt>
    <dd class="tag-see">
        <ul>
            <li><a href="https://bitmessage.org/wiki/Mobile_Protocol_specification">https://bitmessage.org/wiki/Mobile_Protocol_specification</a></li>
        </ul>
    </dd>


</dl>


<h4 class="name" id=".NODE_MOBILE"><span class="type-signature">(static, constant) </span>NODE_MOBILE<span class="type-signature"> :number</span></h4>


<div class="description">
    <p>Bit index indicating web/mobile client with limited network
capabilities (proposal feature).</p>
</div>


    <h5>Type:</h5>
    <ul>
        <li>

<span class="param-type">number</span>


        </li>
    </ul>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line995">line 995</a>
    </li></ul></dd>


    <dt class="tag-see">See:</dt>
    <dd class="tag-see">
        <ul>
            <li><a href="https://bitmessage.org/wiki/Mobile_Protocol_specification">https://bitmessage.org/wiki/Mobile_Protocol_specification</a></li>
        </ul>
    </dd>


</dl>


<h4 class="name" id=".NODE_NETWORK"><span class="type-signature">(static, constant) </span>NODE_NETWORK<span class="type-signature"> :number</span></h4>


<div class="description">
    <p>Bit index indicating normal network node.</p>
</div>


    <h5>Type:</h5>
    <ul>
        <li>

<span class="param-type">number</span>


        </li>
    </ul>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line987">line 987</a>
    </li></ul></dd>


</dl>


<h4 class="name" id="buffer"><span class="type-signature"></span>buffer<span class="type-signature"> :Buffer</span></h4>


<div class="description">
    <p>The contents of the bitfield.</p>
</div>


    <h5>Type:</h5>
    <ul>
        <li>

<span class="param-type">Buffer</span>


        </li>
    </ul>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line974">line 974</a>
    </li></ul></dd>


</dl>


        <h3 class="subsection-title">Methods</h3>


    <h4 class="name" id="get"><span class="type-signature"></span>get<span class="signature">(index)</span><span class="type-signature"> &rarr; {boolean}</span></h4>


<div class="description">
    <p>Returns a boolean indicating whether the bit is set.</p>
</div>


    <h5>Parameters:</h5>


<table class="params">
    <thead>
    <tr>

        <th>Name</th>


        <th>Type</th>


        <th class="last">Description</th>
    </tr>
    </thead>

    <tbody>


        <tr>

                <td class="name"><code>index</code></td>


            <td class="type">


<span class="param-type">number</span>


            </td>


            <td class="description last"><p>Bit index (MSB 0)</p></td>
        </tr>


    </tbody>
</table>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line958">line 958</a>
    </li></ul></dd>


</dl>


<h5>Returns:</h5>


<dl>
    <dt>
        Type
    </dt>
    <dd>

<span class="param-type">boolean</span>


    </dd>
</dl>


    <h4 class="name" id="set"><span class="type-signature"></span>set<span class="signature">(index)</span><span class="type-signature"> &rarr; {Object}</span></h4>


<div class="description">
    <p>Set the given bit(s) to <code>1</code>.</p>
</div>


    <h5>Parameters:</h5>


<table class="params">
    <thead>
    <tr>

        <th>Name</th>


        <th>Type</th>


        <th class="last">Description</th>
    </tr>
    </thead>

    <tbody>


        <tr>

                <td class="name"><code>index</code></td>


            <td class="type">


<span class="param-type">number</span>
|

<span class="param-type">Array.&lt;number></span>


            </td>


            <td class="description last"><p>Bit(s) index (MSB 0)</p></td>
        </tr>


    </tbody>
</table>


<dl class="details">


    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line966">line 966</a>
    </li></ul></dd>


</dl>


<h5>Returns:</h5>


<div class="param-desc">
    <p>Returns self so methods can be chained.</p>
</div>


<dl>
    <dt>
        Type
    </dt>
    <dd>

<span class="param-type">Object</span>


    </dd>
</dl>


</article>

</section>


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