TryCF Gist

trycf-gist-1769672684556-6e3b8449-d51e-b91e-2320-6f70697f21e5.cfm

<cfscript>

boolean function isBool(any val) {
	return (arguments.val === true || arguments.val === false);
}

public boolean function isStrictBoolean( required any value ) {

	return( isInstanceOf( javacast("", value), "java.lang.Boolean" ) );

}

public boolean function getTrue() {
    return true == true;
}

public boolean function getFalse() {
    return true == false;
}

values = [
    "yes",
    "no",
    1,
    0,
    true,
    false
];

writeDump({
"a" : isInstanceOf( 1 == 1, "java.lang.Boolean" ),
"b" : isInstanceOf( TRUE, "java.lang.Boolean" )
});

for (i=1; i<=arrayLen(values); i++) {
    writeOutput("<p>#values[i]# : #isBool(values[i])#</p>");
}
</cfscript>