:relfileprefix: ../../../
[#550E06938A16CFC3A8AD20CFB49A005A91EC15A2]

= Function params_base::empty

pass:v,q[Return true if there are no params]


== Synopsis

Declared in header `</boost/url/params_base.hpp#L191[boost/url/params_base.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
bool
empty() const noexcept;
----

== Description


=== Example
[,cpp]
----
assert( ! url_view( "?key=value" ).params().empty() );
----

=== Complexity
pass:v,q[Constant.]

=== Exception Safety
pass:v,q[Throws nothing.]



== Return Value

* `bool`