5 files changed, 18 insertions, 66 deletions
diff --git a/ext/node/lib.rs b/ext/node/lib.rs
index dd3acd17c..42a752791 100644
--- a/ext/node/lib.rs
+++ b/ext/node/lib.rs
@@ -151,11 +151,6 @@ fn op_node_build_os() -> String {
 }
 
 #[op2(fast)]
-fn op_is_any_arraybuffer(value: &v8::Value) -> bool {
-  value.is_array_buffer() || value.is_shared_array_buffer()
-}
-
-#[op2(fast)]
 fn op_node_is_promise_rejected(value: v8::Local<v8::Value>) -> bool {
   let Ok(promise) = v8::Local::<v8::Promise>::try_from(value) else {
     return false;
@@ -286,7 +281,6 @@ deno_core::extension!(deno_node,
     ops::os::op_node_os_username<P>,
     ops::os::op_geteuid<P>,
     op_node_build_os,
-    op_is_any_arraybuffer,
     op_node_is_promise_rejected,
     op_npm_process_state,
     ops::require::op_require_init_paths,
diff --git a/ext/node/polyfills/internal/console/constructor.mjs b/ext/node/polyfills/internal/console/constructor.mjs
index afa18bb97..e9160cf70 100644
--- a/ext/node/polyfills/internal/console/constructor.mjs
+++ b/ext/node/polyfills/internal/console/constructor.mjs
@@ -4,6 +4,9 @@
 // TODO(petamoriken): enable prefer-primordials for node polyfills
 // deno-lint-ignore-file prefer-primordials
 
+import { core } from "ext:core/mod.js";
+const ops = core.ops;
+
 // Mock trace for now
 const trace = () => {};
 import {
@@ -17,7 +20,6 @@ import {
   validateInteger,
   validateObject,
 } from "ext:deno_node/internal/validators.mjs";
-import { previewEntries } from "ext:deno_node/internal_binding/util.ts";
 import { Buffer } from "node:buffer";
 const { isBuffer } = Buffer;
 import {
@@ -500,7 +502,7 @@ const consoleMethods = {
     let isKeyValue = false;
     let i = 0;
     if (mapIter) {
-      const res = previewEntries(tabularData, true);
+      const res = ops.op_preview_entries(tabularData, true);
       tabularData = res[0];
       isKeyValue = res[1];
     }
@@ -535,7 +537,7 @@ const consoleMethods = {
 
     const setIter = isSetIterator(tabularData);
     if (setIter) {
-      tabularData = previewEntries(tabularData);
+      tabularData = ops.op_preview_entries(tabularData, false);
     }
 
     const setlike = setIter || mapIter || isSet(tabularData);
diff --git a/ext/node/polyfills/internal_binding/types.ts b/ext/node/polyfills/internal_binding/types.ts
index fe697f194..1f0528b2f 100644
--- a/ext/node/polyfills/internal_binding/types.ts
+++ b/ext/node/polyfills/internal_binding/types.ts
@@ -27,9 +27,6 @@
 const { core } = globalThis.__bootstrap;
 const { ops } = core;
 
-// https://tc39.es/ecma262/#sec-object.prototype.tostring
-const _toString = Object.prototype.toString;
-
 // https://tc39.es/ecma262/#sec-bigint.prototype.valueof
 const _bigIntValueOf = BigInt.prototype.valueOf;
 
@@ -94,11 +91,7 @@ export function isAnyArrayBuffer(
 }
 
 export function isArgumentsObject(value: unknown): value is IArguments {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === undefined &&
-    _toString.call(value) === "[object Arguments]"
-  );
+  return ops.op_is_arguments_object(value);
 }
 
 export function isArrayBuffer(value: unknown): value is ArrayBuffer {
@@ -113,11 +106,7 @@ export function isArrayBuffer(value: unknown): value is ArrayBuffer {
 export function isAsyncFunction(
   value: unknown,
 ): value is (...args: unknown[]) => Promise<unknown> {
-  return (
-    typeof value === "function" &&
-    // @ts-ignore: function is a kind of object
-    value[Symbol.toStringTag] === "AsyncFunction"
-  );
+  return ops.op_is_async_function(value);
 }
 
 // deno-lint-ignore ban-types
@@ -166,18 +155,11 @@ export function isDate(value: unknown): value is Date {
 export function isGeneratorFunction(
   value: unknown,
 ): value is GeneratorFunction {
-  return (
-    typeof value === "function" &&
-    // @ts-ignore: function is a kind of object
-    value[Symbol.toStringTag] === "GeneratorFunction"
-  );
+  return ops.op_is_generator_function(value);
 }
 
 export function isGeneratorObject(value: unknown): value is Generator {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === "Generator"
-  );
+  return ops.op_is_generator_object(value);
 }
 
 export function isMap(value: unknown): value is Map<unknown, unknown> {
@@ -192,27 +174,17 @@ export function isMap(value: unknown): value is Map<unknown, unknown> {
 export function isMapIterator(
   value: unknown,
 ): value is IterableIterator<[unknown, unknown]> {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === "Map Iterator"
-  );
+  return ops.op_is_map_iterator(value);
 }
 
 export function isModuleNamespaceObject(
   value: unknown,
 ): value is Record<string | number | symbol, unknown> {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === "Module"
-  );
+  return ops.op_is_module_namespace_object(value);
 }
 
 export function isNativeError(value: unknown): value is Error {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === undefined &&
-    _toString.call(value) === "[object Error]"
-  );
+  return ops.op_is_native_error(value);
 }
 
 // deno-lint-ignore ban-types
@@ -243,10 +215,7 @@ export function isBigIntObject(value: unknown): value is bigint {
 }
 
 export function isPromise(value: unknown): value is Promise<unknown> {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === "Promise"
-  );
+  return ops.op_is_promise(value);
 }
 
 export function isProxy(
@@ -256,11 +225,7 @@ export function isProxy(
 }
 
 export function isRegExp(value: unknown): value is RegExp {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === undefined &&
-    _toString.call(value) === "[object RegExp]"
-  );
+  return ops.op_is_reg_exp(value);
 }
 
 export function isSet(value: unknown): value is Set<unknown> {
@@ -275,10 +240,7 @@ export function isSet(value: unknown): value is Set<unknown> {
 export function isSetIterator(
   value: unknown,
 ): value is IterableIterator<unknown> {
-  return (
-    isObjectLike(value) &&
-    value[Symbol.toStringTag] === "Set Iterator"
-  );
+  return ops.op_is_set_iterator(value);
 }
 
 export function isSharedArrayBuffer(
diff --git a/ext/node/polyfills/internal_binding/util.ts b/ext/node/polyfills/internal_binding/util.ts
index 302b2d57c..a90728564 100644
--- a/ext/node/polyfills/internal_binding/util.ts
+++ b/ext/node/polyfills/internal_binding/util.ts
@@ -129,5 +129,3 @@ export function getOwnNonIndexProperties(
   }
   return result;
 }
-
-export { previewEntries } from "ext:deno_console/01_console.js";
diff --git a/ext/node/polyfills/util.ts b/ext/node/polyfills/util.ts
index a77167253..c84131f68 100644
--- a/ext/node/polyfills/util.ts
+++ b/ext/node/polyfills/util.ts
@@ -109,15 +109,11 @@ export function isFunction(value: unknown): boolean {
   return typeof value === "function";
 }
 
-/** @deprecated Use util.types.RegExp() instead. */
-export function isRegExp(value: unknown): boolean {
-  return types.isRegExp(value);
-}
+/** @deprecated Use util.types.isRegExp() instead. */
+export const isRegExp = types.isRegExp;
 
 /** @deprecated Use util.types.isDate() instead. */
-export function isDate(value: unknown): boolean {
-  return types.isDate(value);
-}
+export const isDate = types.isDate;
 
 /** @deprecated - use `value === null || (typeof value !== "object" && typeof value !== "function")` instead. */
 export function isPrimitive(value: unknown): boolean {