TryCF Gist

trycf-gist-1655835087350-af6c85b3-b7b4-ee34-7ced-a6c2a6471d1e.cfm

<cfscript>
WhatIsTruth('Url.foo not declared');
Url.foo;
WhatIsTruth('Url.foo;');
Url.foo = NullValue();
WhatIsTruth('Url.foo = NullValue();');
Url.foo = "hey";
WhatIsTruth('Url.foo = "hey";');

function WhatIsTruth(header) {
	echo('<h1>#header#</h1>');
	dump(label='Url', var=Url)
	dump(label='IsDefined("Url.foo")', var=IsDefined("Url.foo"));
	dump(label='ParameterExists(Url.foo)', var=ParameterExists(Url.foo));
	dump(label='StructKeyExists(Url, "foo")', var=StructKeyExists(Url, "foo"));
	dump(label='!isNull(Url.foo)', var=!isNull(Url.foo));
	dump(label='(Url.foo ?: false) != false)', var=(Url.foo ?: false) != false);
	dump(label='(Url.foo ?: false) !== false)', var=(Url.foo ?: false) !== false);
	dump(label='Url?.foo != NullValue()', var=Url?.foo != NullValue());
	dump(label='Url?.foo !== NullValue()', var=Url?.foo !== NullValue());
	echo("<br>");
}

echo('IsDefined("Url.customer")');
timer type="outline" {
	loop times=1000000{
		IsDefined("Url.customer");
	}
}
echo('StructKeyExists(Url, "customer")');
timer type="outline" {
	loop times=1000000{
		StructKeyExists(Url, "customer");
	}
}
echo('ParameterExists(Url.customer)');
timer type="outline" {
	loop times=1000000{
		ParameterExists(Url.customer);
	}
}
echo('!IsNull(url.customer)');
timer type="outline" {
	loop times=1000000{
		!isNull(url.customer);
	}
}
echo('Url.customer ?: false');
timer type="outline" {
	loop times=1000000{
		Url.customer ?: false;
	}
}
echo('(Url.customer ?: false) != false');
timer type="outline" {
	loop times=1000000{
		(Url.customer ?: false) != false;
	}
}
echo('(Url.customer ?: false) !== false');
timer type="outline" {
	loop times=1000000{
		(Url.customer ?: false) !== false;
	}
}
echo('Url?.customer !== NullValue()');
timer type="outline" {
	loop times=1000000{
		Url?.customer !== NullValue();
	}
}
</cfscript>