javascript: add mp.del_property()

DOCS/man/javascript.rst

@@ -95,6 +95,8 @@ success, ``error`` is empty string on success.
 
 ``mp.abort_async_command(id)``
 
+``mp.del_property(name)`` (LE)
+
 ``mp.get_property(name [,def])`` (LE)
 
 ``mp.get_property_osd(name [,def])`` (LE)

player/javascript.c

@@ -698,6 +698,13 @@ static void script_get_property(js_State *J, void *af)
         js_pushstring(J, res);
 }
 
+// args: name
+static void script_del_property(js_State *J)
+{
+    int e = mpv_del_property(jclient(J), js_tostring(J, 1));
+    push_status(J, e);
+}
+
 // args: name [,def]
 static void script_get_property_bool(js_State *J)
 {
@@ -1171,6 +1178,7 @@ static const struct fn_entry main_fns[] = {
     AF_ENTRY(command_native, 2),
     AF_ENTRY(_command_native_async, 2),
     FN_ENTRY(_abort_async_command, 1),
+    FN_ENTRY(del_property, 1),
     FN_ENTRY(get_property_bool, 2),
     FN_ENTRY(get_property_number, 2),
     AF_ENTRY(get_property_native, 2),