6 files changed, 46 insertions, 1 deletions
diff --git a/cli/build.rs b/cli/build.rs
index d7bed218c..3bc39c8f4 100644
--- a/cli/build.rs
+++ b/cli/build.rs
@@ -130,7 +130,9 @@ fn create_compiler_snapshot(
     "es2021.string",
     "es2021.weakref",
     "esnext",
+    "esnext.error",
     "esnext.intl",
+    "esnext.object",
     "esnext.promise",
     "esnext.string",
     "esnext.weakref",
diff --git a/cli/dts/lib.esnext.d.ts b/cli/dts/lib.esnext.d.ts
index a71ac70e6..0e23bff0f 100644
--- a/cli/dts/lib.esnext.d.ts
+++ b/cli/dts/lib.esnext.d.ts
@@ -20,5 +20,7 @@ and limitations under the License.
 
 /// <reference lib="es2021" />
 /// <reference lib="esnext.array" />
+/// <reference lib="esnext.error" />
 /// <reference lib="esnext.intl" />
+/// <reference lib="esnext.object" />
 /// <reference lib="esnext.string" />
diff --git a/cli/dts/lib.esnext.error.d.ts b/cli/dts/lib.esnext.error.d.ts
new file mode 100644
index 000000000..fa06d6f58
--- /dev/null
+++ b/cli/dts/lib.esnext.error.d.ts
@@ -0,0 +1,16 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+/// <reference no-default-lib="true"/>
+
+interface Error {
+  cause?: any;
+}
+
+interface ErrorInit {
+  cause?: any;
+}
+
+interface ErrorConstructor {
+  new (message?: string, init?: ErrorInit): Error;
+  (message?: string, init?: ErrorInit): Error;
+}
diff --git a/cli/dts/lib.esnext.object.d.ts b/cli/dts/lib.esnext.object.d.ts
new file mode 100644
index 000000000..4140f9334
--- /dev/null
+++ b/cli/dts/lib.esnext.object.d.ts
@@ -0,0 +1,12 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+/// <reference no-default-lib="true"/>
+
+interface ObjectConstructor {
+  /**
+   * Determines whether an object has a property with the specified name.
+   * @param o The target object.
+   * @param v A property name.
+   */
+  hasOwn(o: object, v: PropertyKey): boolean;
+}
diff --git a/cli/tests/unit/esnext_test.ts b/cli/tests/unit/esnext_test.ts
index 558c678bc..5d858e267 100644
--- a/cli/tests/unit/esnext_test.ts
+++ b/cli/tests/unit/esnext_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-import { assertEquals, unitTest } from "./test_util.ts";
+import { assert, assertEquals, unitTest } from "./test_util.ts";
 
 // TODO(@kitsonk) remove when we are no longer patching TypeScript to have
 // these types available.
@@ -10,3 +10,14 @@ unitTest(function typeCheckingEsNextArrayString() {
   const b = ["a", "b", "c", "d", "e", "f"];
   assertEquals(b.at(-1), "f");
 });
+
+unitTest(function objectHasOwn() {
+  const a = { a: 1 };
+  assert(Object.hasOwn(a, "a"));
+  assert(!Object.hasOwn(a, "b"));
+});
+
+unitTest(function errorCause() {
+  const e = new Error("test", { cause: "something" });
+  assertEquals(e.cause, "something");
+});
diff --git a/cli/tsc/00_typescript.js b/cli/tsc/00_typescript.js
index 5b8d64c5f..b1d91d541 100644
--- a/cli/tsc/00_typescript.js
+++ b/cli/tsc/00_typescript.js
@@ -37080,6 +37080,8 @@ var ts;
         ["es2021.promise", "lib.es2021.promise.d.ts"],
         ["es2021.string", "lib.es2021.string.d.ts"],
         ["es2021.weakref", "lib.es2021.weakref.d.ts"],
+        ["esnext.object", "lib.esnext.object.d.ts"],
+        ["esnext.error", "lib.esnext.error.d.ts"],
         ["esnext.array", "lib.esnext.array.d.ts"],
         ["esnext.symbol", "lib.es2019.symbol.d.ts"],
         ["esnext.asynciterable", "lib.es2018.asynciterable.d.ts"],