typia.http.isFormData() is a function decoding FormData instance, with
automatic type casting to the expected type. When roperty type be defined
as boolean or Blob type, typia.http.isFormData() will cast the value
to the expected type when decoding.
Also, after decoding, typia.http.isFormData() performs type checking to the
decoded value by combining with is function. Therefore, when the
decoded value is not following the T type, null value would be returned.
By the way, as FormData is not enough to express complex data structures,
typia.http.isFormData() function has some limitations. If target type T is
not following those restrictions, compilation errors would be occured.
Type T must be an object type
Do not allow dynamic property
Only boolean, bigint, number, string, Blob, File or their array types are allowed
Form data decoder with type checking.
typia.http.isFormData()is a function decodingFormDatainstance, with automatic type casting to the expected type. When roperty type be defined asbooleanorBlobtype,typia.http.isFormData()will cast the value to the expected type when decoding.Also, after decoding,
typia.http.isFormData()performs type checking to the decoded value by combining with is function. Therefore, when the decoded value is not following theTtype,nullvalue would be returned.By the way, as
FormDatais not enough to express complex data structures,typia.http.isFormData()function has some limitations. If target typeTis not following those restrictions, compilation errors would be occured.Tmust be an object typeboolean,bigint,number,string,Blob,Fileor their array types are allowed