queryParameter
The first query parameter named name decoded using UTF-8, or null if there is no such query parameter.
| URL | queryParameter("a") |
|---|---|
http://host/ | null |
http://host/? | null |
http://host/?a=apple&k=key+lime | "apple" |
http://host/?a=apple&a=apricot | "apple" |
http://host/?a=apple&b | "apple" |