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<h1>Module <a href="type_React.Step.html">React.Step</a></h1>
<pre><span class="keyword">module</span> Step: <code class="code"><span class="keyword">sig</span></code> <a href="React.Step.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info module top">
Update steps.
<p>
Update functions returned by <a href="React.S.html#VALcreate"><code class="code"><span class="constructor">React</span>.<span class="constructor">S</span>.create</code></a> and <a href="React.E.html#VALcreate"><code class="code"><span class="constructor">React</span>.<span class="constructor">E</span>.create</code></a>
implicitely create and execute update steps when used without
specifying their <code class="code">step</code> argument.
<p>
Using explicit <a href="React.html#TYPEstep"><code class="code"><span class="constructor">React</span>.step</code></a> values with these functions gives more control on
the time when the update step is perfomed and allows to perform
simultaneous <a href="React.html#primitives">primitive</a> signal updates and event
occurences. See also the documentation about <a href="React.html#steps">update steps</a> and
<a href="React.html#simultaneity">simultaneous events</a>.<br>
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<h1 id="1_Steps">Steps</h1><br>
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> = <code class="type"><a href="React.html#TYPEstep">React.step</a></code> </pre>
<div class="info ">
The type for update steps.<br>
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<pre><span id="VALcreate"><span class="keyword">val</span> create</span> : <code class="type">unit -> <a href="React.html#TYPEstep">React.step</a></code></pre><div class="info ">
<code class="code">create ()</code> is a new update step.<br>
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<pre><span id="VALexecute"><span class="keyword">val</span> execute</span> : <code class="type"><a href="React.html#TYPEstep">React.step</a> -> unit</code></pre><div class="info ">
<code class="code">execute step</code> executes the update step.<br>
<b>Raises</b> <code>Invalid_argument</code> if <code class="code">step</code> was already executed.<br>
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