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<h1>Module <a href="type_Js.Optdef.html">Js.Optdef</a></h1>
<pre><span class="keyword">module</span> Optdef: <code class="type"><a href="Js.OPT.html">OPT</a></code><code class="type"> with type 'a t = 'a optdef</code></pre><div class="info module top">
Standard functions for manipulating possibly undefined values.<br>
</div>
<hr width="100%">
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type">'a</code> t</span> </pre>
<pre><span id="VALempty"><span class="keyword">val</span> empty</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a></code></pre><div class="info ">
No value.<br>
</div>
<pre><span id="VALreturn"><span class="keyword">val</span> return</span> : <code class="type">'a -> 'a <a href="Js.OPT.html#TYPEt">t</a></code></pre><div class="info ">
Consider a value as an optional value.<br>
</div>
<pre><span id="VALmap"><span class="keyword">val</span> map</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> ('a -> 'b) -> 'b <a href="Js.OPT.html#TYPEt">t</a></code></pre><div class="info ">
Apply a function to an optional value if it is available.
Returns the result of the application.<br>
</div>
<pre><span id="VALbind"><span class="keyword">val</span> bind</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> ('a -> 'b <a href="Js.OPT.html#TYPEt">t</a>) -> 'b <a href="Js.OPT.html#TYPEt">t</a></code></pre><div class="info ">
Apply a function returning an optional value to an optional value<br>
</div>
<pre><span id="VALtest"><span class="keyword">val</span> test</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> bool</code></pre><div class="info ">
Returns <code class="code">true</code> if a value is available, <code class="code">false</code> otherwise.<br>
</div>
<pre><span id="VALiter"><span class="keyword">val</span> iter</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> ('a -> unit) -> unit</code></pre><div class="info ">
Apply a function to an optional value if it is available.<br>
</div>
<pre><span id="VALcase"><span class="keyword">val</span> case</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> (unit -> 'b) -> ('a -> 'b) -> 'b</code></pre><div class="info ">
Pattern matching on optional values.<br>
</div>
<pre><span id="VALget"><span class="keyword">val</span> get</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> (unit -> 'a) -> 'a</code></pre><div class="info ">
Get the value. If no value available, an alternative function
is called to get a default value.<br>
</div>
<pre><span id="VALoption"><span class="keyword">val</span> option</span> : <code class="type">'a option -> 'a <a href="Js.OPT.html#TYPEt">t</a></code></pre><div class="info ">
Convert option type.<br>
</div>
<pre><span id="VALto_option"><span class="keyword">val</span> to_option</span> : <code class="type">'a <a href="Js.OPT.html#TYPEt">t</a> -> 'a option</code></pre><div class="info ">
Convert to option type.<br>
</div>
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