sync

src/equality-comparer/index.ts

@@ -0,0 +1,15 @@
+export function identity<T>(obj: T) {
+  return obj;
+}
+
+export function looseEquals<T>(a: T, b: T) {
+  return a == b;
+}
+
+export function strictEquals<T>(a: T, b: T) {
+  return a === b;
+}
+
+export function sameValue<T>(a: T, b: T) {
+  return Object.is(a, b);
+}

src/equality-comparer/types.ts

@@ -0,0 +1,6 @@
+import { AsyncFunction, MaybeAsyncFunction } from "../types.js";
+
+export type EqualityComparison<T> = (first: T, second: T) => boolean;
+
+export type AsyncEqualityComparison<T> = AsyncFunction<EqualityComparison<T>>;
+export type MaybeAsyncEqualityComparison<T> = MaybeAsyncFunction<EqualityComparison<T>>;