js: Implement print function for Date objects

2 files changed, 8 insertions, 6 deletions

diff --git a/Libraries/LibJS/Runtime/Date.h b/Libraries/LibJS/Runtime/Date.h
index 875f8bf5d2..557af7ce2c 100644
--- a/Libraries/LibJS/Runtime/Date.h
+++ b/Libraries/LibJS/Runtime/Date.h
@@ -35,11 +35,16 @@ public:
     virtual ~Date() override;
 
     Core::DateTime& datetime() { return m_datetime; }
+    const Core::DateTime& datetime() const { return m_datetime; }
     u16 milliseconds() { return m_milliseconds; }
 
-    String date_string() { return m_datetime.to_string("%a %b %d %Y"); }
+    String date_string() const { return m_datetime.to_string("%a %b %d %Y"); }
     // FIXME: Deal with timezones once SerenityOS has a working tzset(3)
-    String time_string() { return m_datetime.to_string("%T GMT+0000 (UTC)"); }
+    String time_string() const { return m_datetime.to_string("%T GMT+0000 (UTC)"); }
+    String string() const
+    {
+        return String::format("%s %s", date_string().characters(), time_string().characters());
+    }
 
     virtual Value value_of() const override
     {
diff --git a/Libraries/LibJS/Runtime/DatePrototype.cpp b/Libraries/LibJS/Runtime/DatePrototype.cpp
index c4cf3a6599..eb58b7b64c 100644
--- a/Libraries/LibJS/Runtime/DatePrototype.cpp
+++ b/Libraries/LibJS/Runtime/DatePrototype.cpp
@@ -172,10 +172,7 @@ Value DatePrototype::to_string(Interpreter& interpreter)
     auto* this_object = this_date_from_interpreter(interpreter);
     if (!this_object)
         return {};
-    auto string = String::format(
-        "%s %s",
-        this_object->date_string().characters(),
-        this_object->time_string().characters());
+    auto string = this_object->string();
     return js_string(interpreter.heap(), move(string));
 }