mem - npm Package Compare versions

Comparing version 5.0.0 to 5.1.0

index.d.ts

 declare namespace mem {
-	interface CacheStorage<KeyType extends unknown, ValueType extends unknown> {
+	interface CacheStorage<KeyType, ValueType> {
 		has(key: KeyType): boolean;
@@ -12,4 +12,4 @@ get(key: KeyType): ValueType | undefined;
 		ArgumentsType extends unknown[],
-		CacheKeyType extends unknown,
-		ReturnType extends unknown
+		CacheKeyType,
+		ReturnType
 	> {
@@ -77,4 +77,4 @@ /**
 		ArgumentsType extends unknown[],
-		ReturnType extends unknown,
-		CacheKeyType extends unknown
+		ReturnType,
+		CacheKeyType
 	>(
@@ -90,3 +90,3 @@ fn: (...arguments: ArgumentsType) => ReturnType,
 	*/
-	clear<ArgumentsType extends unknown[], ReturnType extends unknown>(
+	clear<ArgumentsType extends unknown[], ReturnType>(
 		fn: (...arguments: ArgumentsType) => ReturnType
@@ -93,0 +93,0 @@ ): void;

index.js

@@ -25,37 +25,27 @@ 'use strict';
 
-const mem = (fn, options) => {
-	options = {
-		cacheKey: defaultCacheKey,
-		cache: new Map(),
-		cachePromiseRejection: true,
-		...options
-	};
-
-	if (typeof options.maxAge === 'number') {
-		mapAgeCleaner(options.cache);
+const mem = (fn, {
+	cacheKey = defaultCacheKey,
+	cache = new Map(),
+	cachePromiseRejection = true,
+	maxAge
+} = {}) => {
+	if (typeof maxAge === 'number') {
+		mapAgeCleaner(cache);
 	}
 
-	const {cache} = options;
-	options.maxAge = options.maxAge || 0;
-
-	const setData = (key, data) => {
-		cache.set(key, {
-			data,
-			maxAge: Date.now() + options.maxAge
-		});
-	};
-
 	const memoized = function (...arguments_) {
-		const key = options.cacheKey(...arguments_);
+		const key = cacheKey(...arguments_);
 
 		if (cache.has(key)) {
-			return cache.get(key).data;
+			return maxAge ? cache.get(key).data : cache.get(key);
 		}
 
-		const cacheItem = fn.call(this, ...arguments_);
+		const cacheItem = fn.apply(this, arguments_);
 
-		setData(key, cacheItem);
+		cache.set(key, maxAge ? {
+			data: cacheItem,
+			maxAge: Date.now() + maxAge
+		} : cacheItem);
 
-		if (isPromise(cacheItem) && options.cachePromiseRejection === false) {
-			// Remove rejected promises from cache unless `cachePromiseRejection` is set to `true`
+		if (isPromise(cacheItem) && cachePromiseRejection === false) {
 			cacheItem.catch(() => cache.delete(key));
@@ -73,3 +63,3 @@ }
 
-	cacheStore.set(memoized, options.cache);
+	cacheStore.set(memoized, cache);
 
@@ -76,0 +66,0 @@ return memoized;

package.json

 {
 	"name": "mem",
-	"version": "5.0.0",
+	"version": "5.1.0",
 	"description": "Memoize functions - An optimization used to speed up consecutive function calls by caching the result of calls with identical input",
@@ -5,0 +5,0 @@ "license": "MIT",

readme.md

@@ -81,3 +81,3 @@ # mem [![Build Status](https://travis-ci.org/sindresorhus/mem.svg?branch=master)](https://travis-ci.org/sindresorhus/mem)
 
-### mem(fn, [options])
+### mem(fn, options?)
 
@@ -166,4 +166,12 @@ #### fn
 
-## License
+---
 
-MIT © [Sindre Sorhus](https://sindresorhus.com)
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-mem?utm_source=npm-mem&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>

No alert changes

Improved metrics

Total package byte prevSize

9692

increased by0.13%

Number of lines in readme file

176

increased by4.76%

Worsened metrics

Lines of code

133

decreased by-5%

No dependency changes