queryParameterName
Returns the name of the query parameter at index. For example this returns "a" for queryParameterName(0) on http://host/?a=apple&b=banana. This throws if index is not less than the query size.
| URL | queryParameterName(0) | queryParameterName(1) |
|---|---|---|
http://host/ | exception | exception |
http://host/? | "" | exception |
http://host/?a=apple&k=key+lime | "a" | "k" |
http://host/?a=apple&a=apricot | "a" | "a" |
http://host/?a=apple&b | "a" | "b" |