</code>.</p>
</div>
<ul class="info-attributes">
<li><b>Since</b> 4.13.0</li>
</ul>
</div>

<pre id="VALfor_all">val for_all : f:(char -&gt; bool) -&gt; bytes -&gt; bool</pre><div class="info ">
<div class="info-desc">
<p><code class="code">for_all&nbsp;p&nbsp;s</code> checks if all characters in <code class="code">s</code> satisfy the predicate <code class="code">p</code>.</p>
</div>
<ul class="info-attributes">
<li><b>Since</b> 4.13.0</li>
</ul>
</div>

<pre id="VALexists">val exists : f:(char -&gt; bool)