# File lib/rack/utils.rb, line 101 101: def build_query(params) 102: params.map { |k, v| 103: if v.class == Array 104: build_query(v.map { |x| [k, x] }) 105: else 106: "#{escape(k)}=#{escape(v)}" 107: end 108: }.join("&") 109: end