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<!doctype html>
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<head>
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<title> Belt_Map.String </title></head>
<body>
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<h1>Module <a href="type_Belt_Map.String.html">Belt_Map.String</a></h1>
<pre><span class="keyword">module</span> String: <code class="type"><a href="Belt_MapString.html">Belt_MapString</a></code></pre><div class="info module top">
<div class="not-examples">
specalized when key type is <code class="code">string</code>, more efficient
than the generic type, its compare behavior is fixed using the built-in comparison<br>
</div>
</div>
<hr width="100%">
<div class="type-declaration">
<pre><span id="TYPEkey"><span class="keyword">type</span> <code class="type"></code>key</span> = <code class="type">string</code> </pre>
</div>
<div class="type-declaration">
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type">'value</code> t</span> </pre>
</div>
<div class="info ">
<div class="not-examples">
The type of maps from type <code class="code">key</code> to type <code class="code">'value</code>.<br>
</div>
</div>
<pre><span id="VALempty"><span class="keyword">val</span> empty</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALisEmpty"><span class="keyword">val</span> isEmpty</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> bool</code></pre>
<pre><span id="VALhas"><span class="keyword">val</span> has</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> bool</code></pre>
<pre><span id="VALcmpU"><span class="keyword">val</span> cmpU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v -> int [@bs]) -> int</code></pre>
<pre><span id="VALcmp"><span class="keyword">val</span> cmp</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v -> int) -> int</code></pre>
<pre><span id="VALeqU"><span class="keyword">val</span> eqU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> 'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v -> bool [@bs]) -> bool</code></pre>
<pre><span id="VALeq"><span class="keyword">val</span> eq</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v -> bool) -> bool</code></pre><div class="info ">
<div class="not-examples">
<code class="code">eq m1 m2</code> tests whether the maps <code class="code">m1</code> and <code class="code">m2</code> are
equal, that is, contain equal keys and associate them with
equal data.<br>
</div>
</div>
<pre><span id="VALfindFirstByU"><span class="keyword">val</span> findFirstByU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool [@bs]) -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) option</code></pre>
<pre><span id="VALfindFirstBy"><span class="keyword">val</span> findFirstBy</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool) -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) option</code></pre><div class="info ">
<div class="not-examples">
<code class="code">findFirstBy m p</code> uses funcion <code class="code">f</code> to find the first key value pair
to match predicate <code class="code">p</code>.<br>
</div>
</div>
<pre><span id="VALforEachU"><span class="keyword">val</span> forEachU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> unit [@bs]) -> unit</code></pre>
<pre><span id="VALforEach"><span class="keyword">val</span> forEach</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> unit) -> unit</code></pre><div class="info ">
<div class="not-examples">
<code class="code">forEach m f</code> applies <code class="code">f</code> to all bindings in map <code class="code">m</code>.
<code class="code">f</code> receives the key as first argument, and the associated value
as second argument. The bindings are passed to <code class="code">f</code> in increasing
order with respect to the ordering over the type of the keys.<br>
</div>
</div>
<pre><span id="VALreduceU"><span class="keyword">val</span> reduceU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> 'v2 -> ('v2 -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v2 [@bs]) -> 'v2</code></pre>
<pre><span id="VALreduce"><span class="keyword">val</span> reduce</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v2 -> ('v2 -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v2) -> 'v2</code></pre><div class="info ">
<div class="not-examples">
<code class="code">reduce m a f</code> computes <code class="code">(f kN dN ... (f k1 d1 a)...)</code>,
where <code class="code">k1 ... kN</code> are the keys of all bindings in <code class="code">m</code>
(in increasing order), and <code class="code">d1 ... dN</code> are the associated data.<br>
</div>
</div>
<pre><span id="VALeveryU"><span class="keyword">val</span> everyU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool [@bs]) -> bool</code></pre>
<pre><span id="VALevery"><span class="keyword">val</span> every</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool) -> bool</code></pre><div class="info ">
<div class="not-examples">
<code class="code">every m p</code> checks if all the bindings of the map
satisfy the predicate <code class="code">p</code>. Order unspecified<br>
</div>
</div>
<pre><span id="VALsomeU"><span class="keyword">val</span> someU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool [@bs]) -> bool</code></pre>
<pre><span id="VALsome"><span class="keyword">val</span> some</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool) -> bool</code></pre><div class="info ">
<div class="not-examples">
<code class="code">some m p</code> checks if at least one binding of the map
satisfy the predicate <code class="code">p</code>. Order unspecified<br>
</div>
</div>
<pre><span id="VALsize"><span class="keyword">val</span> size</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> int</code></pre>
<pre><span id="VALtoList"><span class="keyword">val</span> toList</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) list</code></pre><div class="info ">
<div class="not-examples">
In increasing order.<br>
</div>
</div>
<pre><span id="VALtoArray"><span class="keyword">val</span> toArray</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) array</code></pre>
<pre><span id="VALfromArray"><span class="keyword">val</span> fromArray</span> : <code class="type">(<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) array -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALkeysToArray"><span class="keyword">val</span> keysToArray</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> array</code></pre>
<pre><span id="VALvaluesToArray"><span class="keyword">val</span> valuesToArray</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v array</code></pre>
<pre><span id="VALminKey"><span class="keyword">val</span> minKey</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> option</code></pre>
<pre><span id="VALminKeyUndefined"><span class="keyword">val</span> minKeyUndefined</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> <a href="Js.html#TYPEundefined">Js.undefined</a></code></pre>
<pre><span id="VALmaxKey"><span class="keyword">val</span> maxKey</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> option</code></pre>
<pre><span id="VALmaxKeyUndefined"><span class="keyword">val</span> maxKeyUndefined</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> <a href="Js.html#TYPEundefined">Js.undefined</a></code></pre>
<pre><span id="VALminimum"><span class="keyword">val</span> minimum</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) option</code></pre>
<pre><span id="VALminUndefined"><span class="keyword">val</span> minUndefined</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) <a href="Js.html#TYPEundefined">Js.undefined</a></code></pre>
<pre><span id="VALmaximum"><span class="keyword">val</span> maximum</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) option</code></pre>
<pre><span id="VALmaxUndefined"><span class="keyword">val</span> maxUndefined</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) <a href="Js.html#TYPEundefined">Js.undefined</a></code></pre>
<pre><span id="VALget"><span class="keyword">val</span> get</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v option</code></pre>
<pre><span id="VALgetUndefined"><span class="keyword">val</span> getUndefined</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v <a href="Js.html#TYPEundefined">Js.undefined</a></code></pre>
<pre><span id="VALgetWithDefault"><span class="keyword">val</span> getWithDefault</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v</code></pre>
<pre><span id="VALgetExn"><span class="keyword">val</span> getExn</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v</code></pre>
<pre><span id="VALcheckInvariantInternal"><span class="keyword">val</span> checkInvariantInternal</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="not-examples">
<b>raise</b> when invariant is not held<br>
</div>
</div>
<pre><span id="VALcheckInvariantInternal"><span class="keyword">val</span> checkInvariantInternal</span> : <code class="type">'a <a href="Belt_MapString.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="not-examples">
<b>raise</b> when invariant is not held<br>
</div>
</div>
<pre><span id="VALremove"><span class="keyword">val</span> remove</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">remove m x</code> returns a map containing the same bindings as
<code class="code">m</code>, except for <code class="code">x</code> which is unbound in the returned map.<br>
</div>
</div>
<pre><span id="VALremoveMany"><span class="keyword">val</span> removeMany</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> array -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALset"><span class="keyword">val</span> set</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> <a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">set m x y</code> returns a map containing the same bindings as
<code class="code">m</code>, plus a binding of <code class="code">x</code> to <code class="code">y</code>. If <code class="code">x</code> was already bound
in <code class="code">m</code>, its previous binding disappears.<br>
</div>
</div>
<pre><span id="VALupdateU"><span class="keyword">val</span> updateU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> <a href="Belt_MapString.html#TYPEkey">key</a> -> ('v option -> 'v option [@bs]) -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALupdate"><span class="keyword">val</span> update</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> <a href="Belt_MapString.html#TYPEkey">key</a> -> ('v option -> 'v option) -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALmergeU"><span class="keyword">val</span> mergeU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> 'v2 <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v option -> 'v2 option -> 'c option [@bs]) -><br> 'c <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALmerge"><span class="keyword">val</span> merge</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> 'v2 <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v option -> 'v2 option -> 'c option) -><br> 'c <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">merge m1 m2 f</code> computes a map whose keys is a subset of keys of <code class="code">m1</code>
and of <code class="code">m2</code>. The presence of each such binding, and the corresponding
value, is determined with the function <code class="code">f</code>.<br>
</div>
</div>
<pre><span id="VALmergeMany"><span class="keyword">val</span> mergeMany</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> (<a href="Belt_MapString.html#TYPEkey">key</a> * 'v) array -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALkeepU"><span class="keyword">val</span> keepU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool [@bs]) -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALkeep"><span class="keyword">val</span> keep</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool) -> 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">keep m p</code> returns the map with all the bindings in <code class="code">m</code>
that satisfy predicate <code class="code">p</code>.<br>
</div>
</div>
<pre><span id="VALpartitionU"><span class="keyword">val</span> partitionU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool [@bs]) -><br> 'v <a href="Belt_MapString.html#TYPEt">t</a> * 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALpartition"><span class="keyword">val</span> partition</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> bool) -><br> 'v <a href="Belt_MapString.html#TYPEt">t</a> * 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">partition m p</code> returns a pair of maps <code class="code">(m1, m2)</code>, where
<code class="code">m1</code> contains all the bindings of <code class="code">s</code> that satisfy the
predicate <code class="code">p</code>, and <code class="code">m2</code> is the map with all the bindings of
<code class="code">s</code> that do not satisfy <code class="code">p</code>.<br>
</div>
</div>
<pre><span id="VALsplit"><span class="keyword">val</span> split</span> : <code class="type"><a href="Belt_MapString.html#TYPEkey">key</a> -><br> 'v <a href="Belt_MapString.html#TYPEt">t</a> -> 'v <a href="Belt_MapString.html#TYPEt">t</a> * 'v option * 'v <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">split x m</code> returns a triple <code class="code">(l, data, r)</code>, where
<code class="code">l</code> is the map with all the bindings of <code class="code">m</code> whose key
is strictly less than <code class="code">x</code>;
<code class="code">r</code> is the map with all the bindings of <code class="code">m</code> whose key
is strictly greater than <code class="code">x</code>;
<code class="code">data</code> is <code class="code">None</code> if <code class="code">m</code> contains no binding for <code class="code">x</code>,
or <code class="code">Some v</code> if <code class="code">m</code> binds <code class="code">v</code> to <code class="code">x</code>.<br>
</div>
</div>
<pre><span id="VALmapU"><span class="keyword">val</span> mapU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v2 [@bs]) -> 'v2 <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALmap"><span class="keyword">val</span> map</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -> ('v -> 'v2) -> 'v2 <a href="Belt_MapString.html#TYPEt">t</a></code></pre><div class="info ">
<div class="not-examples">
<code class="code">map m f</code> returns a map with same domain as <code class="code">m</code>, where the
associated value <code class="code">a</code> of all bindings of <code class="code">m</code> has been
replaced by the result of the application of <code class="code">f</code> to <code class="code">a</code>.
The bindings are passed to <code class="code">f</code> in increasing order
with respect to the ordering over the type of the keys.<br>
</div>
</div>
<pre><span id="VALmapWithKeyU"><span class="keyword">val</span> mapWithKeyU</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v2 [@bs]) -> 'v2 <a href="Belt_MapString.html#TYPEt">t</a></code></pre>
<pre><span id="VALmapWithKey"><span class="keyword">val</span> mapWithKey</span> : <code class="type">'v <a href="Belt_MapString.html#TYPEt">t</a> -><br> (<a href="Belt_MapString.html#TYPEkey">key</a> -> 'v -> 'v2) -> 'v2 <a href="Belt_MapString.html#TYPEt">t</a></code></pre></body></html>