Returns true if the given qualifier is a FormsQualifier otherwise false.
The qualifier must have a forms key holding a non-empty array of strings, none of which is empty,
blank, or padded with leading/trailing whitespace. Unlike isIdsQualifier, an empty array is
rejected: it can only ever match nothing, which is never what the caller meant, and silently
returning an empty page would hide the mistake. A padded code is rejected for the same reason: it
would otherwise pass validation but match nothing, since the value is compared verbatim rather than
trimmed.
Returns
trueif the given qualifier is a FormsQualifier otherwisefalse.The qualifier must have a
formskey holding a non-empty array of strings, none of which is empty, blank, or padded with leading/trailing whitespace. Unlike isIdsQualifier, an empty array is rejected: it can only ever match nothing, which is never what the caller meant, and silently returning an empty page would hide the mistake. A padded code is rejected for the same reason: it would otherwise pass validation but match nothing, since the value is compared verbatim rather than trimmed.