#include #include String JsonObject::to_string() const { StringBuilder builder; int index = 0; builder.append('{'); for_each_member([&] (auto& key, auto& value) { builder.append('"'); builder.append(key); builder.append('"'); builder.append(':'); builder.append(value.to_string()); if (index != size() - 1) builder.append(','); ++index; }); builder.append('}'); return builder.to_string(); }