diff --git a/src/napi/value/array.zig b/src/napi/value/array.zig
index 56b2c54..6410d00 100644
--- a/src/napi/value/array.zig
+++ b/src/napi/value/array.zig
@@ -317,6 +317,25 @@ pub const Array = struct {
         };
     }
 
+    pub fn CreateWithLength(env: Env, len: u32) !Array {
+        var raw: napi.napi_value = undefined;
+        const status = napi.napi_create_array_with_length(env.raw, @intCast(len), &raw);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+
+        return Array{
+            .env = env.raw,
+            .raw = raw,
+            .len = len,
+            .type = napi.napi_object,
+        };
+    }
+
+    pub fn createWithLength(env: Env, len: u32) !Array {
+        return Array.CreateWithLength(env, len);
+    }
+
     pub fn Set(self: *Array, index: u32, value: anytype) !void {
         const napi_value = try Napi.to_napi_value_auto(self.env, value, null);
         const status = napi.napi_set_element(self.env, self.raw, index, napi_value);
@@ -326,6 +345,32 @@ pub const Array = struct {
         self.len = @max(self.len, index + 1);
     }
 
+    pub fn HasElement(self: Array, index: u32) !bool {
+        var result: bool = false;
+        const status = napi.napi_has_element(self.env, self.raw, index, &result);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return result;
+    }
+
+    pub fn hasElement(self: Array, index: u32) !bool {
+        return self.HasElement(index);
+    }
+
+    pub fn DeleteElement(self: Array, index: u32) !bool {
+        var result: bool = false;
+        const status = napi.napi_delete_element(self.env, self.raw, index, &result);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return result;
+    }
+
+    pub fn deleteElement(self: Array, index: u32) !bool {
+        return self.DeleteElement(index);
+    }
+
     pub fn Push(self: *Array, value: anytype) !void {
         try self.Set(self.len, value);
     }
diff --git a/src/napi/value/object.zig b/src/napi/value/object.zig
index c7e2cd8..975a981 100644
--- a/src/napi/value/object.zig
+++ b/src/napi/value/object.zig
@@ -8,11 +8,13 @@ const Value = @import("../value.zig").Value;
 const Undefined = @import("./undefined.zig").Undefined;
 const Null = @import("./null.zig").Null;
 const String = @import("./string.zig").String;
+const Array = @import("./array.zig").Array;
 const helper = @import("../util/helper.zig");
 const Napi = @import("../util/napi.zig").Napi;
 const NapiError = @import("../wrapper/error.zig");
 const Reference = @import("../wrapper/reference.zig").Reference;
 const native_wrap = @import("../wrapper/native_wrap.zig");
+const options = @import("../options.zig");
 
 pub const Object = struct {
     env: napi.napi_env,
@@ -101,6 +103,19 @@ pub const Object = struct {
         }
     }
 
+    pub fn SetValue(self: Object, key: anytype, value: anytype) !void {
+        const key_raw = try Napi.to_napi_value_auto(self.env, key, null);
+        const n_value = try Napi.to_napi_value_auto(self.env, value, null);
+        const status = napi.napi_set_property(self.env, self.raw, key_raw, n_value);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+    }
+
+    pub fn setValue(self: Object, key: anytype, value: anytype) !void {
+        try self.SetValue(key, value);
+    }
+
     pub fn Get(self: Object, key: []const u8, comptime T: type) T {
         const key_raw = self.keyToNapiValue(key) catch @panic("Failed to create object property key");
         var raw: napi.napi_value = undefined;
@@ -132,6 +147,58 @@ pub const Object = struct {
         return result;
     }
 
+    pub fn propertyNames(self: Object) !Array {
+        var raw: napi.napi_value = undefined;
+        const status = napi.napi_get_property_names(self.env, self.raw, &raw);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return Array.from_raw(self.env, raw);
+    }
+
+    pub fn isDate(self: Object) bool {
+        comptime options.requireNapiVersion(.v5);
+
+        var result: bool = false;
+        const status = napi.napi_is_date(self.env, self.raw, &result);
+        if (status != napi.napi_ok) {
+            NapiError.last_error = NapiError.Error.withStatus(NapiError.Status.New(status));
+            return false;
+        }
+        return result;
+    }
+
+    pub fn dateValue(self: Object) !f64 {
+        comptime options.requireNapiVersion(.v5);
+
+        var result: f64 = 0;
+        const status = napi.napi_get_date_value(self.env, self.raw, &result);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return result;
+    }
+
+    pub fn freeze(self: Object) !Object {
+        comptime options.requireNapiVersion(.v8);
+
+        const status = napi.napi_object_freeze(self.env, self.raw);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return self;
+    }
+
+    pub fn seal(self: Object) !Object {
+        comptime options.requireNapiVersion(.v8);
+
+        const status = napi.napi_object_seal(self.env, self.raw);
+        if (status != napi.napi_ok) {
+            return NapiError.Error.fromStatus(NapiError.Status.New(status));
+        }
+        return self;
+    }
+
     pub fn CreateRef(self: Object) !Reference(Object) {
         return Reference(Object).New(Env.from_raw(self.env), self);
     }