ParameterExists()

Determines if the parameter exists

ParameterExists( parameter=variableString );

Returns: Boolean

Argument Description
parameter
variableString, required

Name of the string variable to test for.

Alias: param

Examples

bool = true;
	string = "I'm a string";
	numeric = 100;

<span class="nv">boolean_exists</span> <span class="o">=</span> <span class="nf">ParameterExists</span><span class="p">(</span><span class="s2">&quot;bool&quot;</span><span class="p">);</span>
<span class="nv">string_exists</span> <span class="o">=</span> <span class="nf">ParameterExists</span><span class="p">(</span><span class="s2">&quot;string&quot;</span><span class="p">);</span>
<span class="nv">number_exists</span> <span class="o">=</span> <span class="nf">ParameterExists</span><span class="p">(</span><span class="s2">&quot;number&quot;</span><span class="p">);</span>
<span class="nf">dump</span><span class="p">(</span><span class="nv">boolean_exists</span><span class="p">);</span> <span class="c">//true</span>
<span class="nf">dump</span><span class="p">(</span><span class="nv">string_exists</span><span class="p">);</span> <span class="c">//true</span>
<span class="nf">dump</span><span class="p">(</span><span class="nv">number_exists</span><span class="p">);</span> <span class="c">//false</span>

See also