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Gambas Documentation - IsDigit
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<h1>
IsDigit
</h1>
<div class="black"><font size="-2"><b>Syntax</b></font></div>
<pre class="syntax"><u>Result</u> <b>= IsDigit (</b> <u>sArg</u> AS String <b>)</b> AS Boolean
<u>Result</u> <b>= Digit? (</b> <u>sArg</u> AS String <b>)</b> AS Boolean</pre><p>

Returns <a href="true+en">TRUE</a> if the <a href="type/string+en">String</a> <u>sArg</u> contains only digits.
<p>
A digit is one of the following characters: [ <tt>0123456789</tt> ]
<p>
<div class="gray"><font size="-2"><b>Example</b></font></div>
<pre class="example">PRINT IsDigit(&quot;1972&quot;)
<hr>True</pre>
<p>
<div class="gray"><font size="-2"><b>Example</b></font></div>
<pre class="example">PRINT IsDigit(&quot;three&quot;)
<hr>False</pre>
<p>
<hr><b>See also</b><br>
<a href="../cat/char+en">Character Test Functions</a>&nbsp;

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