diff --git a/.github/README.md b/.github/README.md
index c57ec737..863b13fe 100644
--- a/.github/README.md
+++ b/.github/README.md
@@ -4150,6 +4150,8 @@ function parseRegex(maybeRegex){
 export function equals(a, b){
   if (arguments.length === 1) return _b => equals(a, _b)
 
+  if (Object.is(a, b)) return true
+
   const aType = type(a)
 
   if (aType !== type(b)) return false
@@ -4554,7 +4556,7 @@ describe('brute force', () => {
 {
   "ERRORS_MESSAGE_MISMATCH": 0,
   "ERRORS_TYPE_MISMATCH": 0,
-  "RESULTS_MISMATCH": 8,
+  "RESULTS_MISMATCH": 0,
   "SHOULD_NOT_THROW": 0,
   "SHOULD_THROW": 0,
   "TOTAL_TESTS": 289,
diff --git a/README.md b/README.md
index f8c04d5e..617e47dd 100644
--- a/README.md
+++ b/README.md
@@ -3925,6 +3925,8 @@ function parseRegex(maybeRegex){
 export function equals(a, b){
   if (arguments.length === 1) return _b => equals(a, _b)
 
+  if (Object.is(a, b)) return true
+
   const aType = type(a)
 
   if (aType !== type(b)) return false
@@ -4329,7 +4331,7 @@ describe('brute force', () => {
 {
   "ERRORS_MESSAGE_MISMATCH": 0,
   "ERRORS_TYPE_MISMATCH": 0,
-  "RESULTS_MISMATCH": 8,
+  "RESULTS_MISMATCH": 0,
   "SHOULD_NOT_THROW": 0,
   "SHOULD_THROW": 0,
   "TOTAL_TESTS": 289,
diff --git a/files/index.d.ts b/files/index.d.ts
index dc0ae9db..c1c0e8ed 100644
--- a/files/index.d.ts
+++ b/files/index.d.ts
@@ -6979,8 +6979,8 @@ Notes:
 
 */
 // @SINGLE_MARKER
-export function mapToObject<T, U>(fn: (input: T) => object|false, list: T[]): U;
-export function mapToObject<T, U>(fn: (input: T) => object|false): (list: T[]) => U;
+export function mapToObject<T, U extends object>(fn: (input: T) => U|false, list: readonly T[]): U;
+export function mapToObject<T, U extends object>(fn: (input: T) => U|false): (list: readonly T[]) => U;
 
 /*
 Method: mapToObjectAsync
@@ -6999,8 +6999,8 @@ Notes:
 
 */
 // @SINGLE_MARKER
-export function mapToObjectAsync<T, U>(fn: (input: T) => Promise<object|false>, list: T[]): Promise<U>;
-export function mapToObjectAsync<T, U>(fn: (input: T) => Promise<object|false>): (list: T[]) => Promise<U>;
+export function mapToObjectAsync<T, U extends object>(fn: (input: T) => Promise<U|false>, list: readonly T[]): Promise<U>;
+export function mapToObjectAsync<T, U extends object>(fn: (input: T) => Promise<U|false>): (list: readonly T[]) => Promise<U>;
 
 /*
 Method: mapKeys
diff --git a/src/unless.js b/src/unless.js
index 0b381ac8..22cc648d 100644
--- a/src/unless.js
+++ b/src/unless.js
@@ -1,11 +1,7 @@
-import { curry } from './curry.js'
+export function unless(predicate, whenFalse){
+  if (arguments.length === 1){
+    return _whenFalse => unless(predicate, _whenFalse)
+  }
 
-function unlessFn(
-  predicate, whenFalseFn, input
-){
-  if (predicate(input)) return input
-
-  return whenFalseFn(input)
+  return input => predicate(input) ? input : whenFalse(input)
 }
-
-export const unless = curry(unlessFn)
\ No newline at end of file