:relfileprefix: ../../../ [#boost-urls-params_encoded_base-size] == xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/params_encoded_base.adoc[pass:[params_encoded_base]]::size Return the number of params === Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- std::size_t size() const noexcept; ---- === Description [,cpp] ---- assert( url_view( "?key=value").encoded_params().size() == 1 ); ---- === Constant. === Throws nothing.