feat: support redis-like ttl as third argument (closes sindresorhus#42)

index.d.ts

@@ -61,7 +61,7 @@ export default class QuickLRU<KeyType, ValueType> extends Map implements Iterabl
 
 	@returns The list instance.
 	*/
-	set(key: KeyType, value: ValueType, options?: {maxAge?: number}): this;
+	set(key: KeyType, value: ValueType, options?: number | {maxAge?: number}): this;
 
 	/**
 	Get an item.

index.js

@@ -112,7 +112,14 @@ export default class QuickLRU extends Map {
 		}
 	}
 
-	set(key, value, {maxAge = this.maxAge} = {}) {
+	set(key, value, options = {}) {
+		let {maxAge} = this;
+		if (typeof options === 'number') {
+			maxAge = options;
+		} else if (typeof options === 'object' && typeof options.maxAge === 'number') {
+			maxAge = options.maxAge;
+		}
+
 		const expiry =
 			typeof maxAge === 'number' && maxAge !== Number.POSITIVE_INFINITY ?
 				Date.now() + maxAge :

readme.md

@@ -80,6 +80,8 @@ Set an item. Returns the instance.
 
 Individual expiration of an item can be specified with the `maxAge` option. If not specified, the global `maxAge` value will be used in case it is specified on the constructor, otherwise the item will never expire.
 
+Options can either be a Number or an Object (e.g. a TTL to expire in 1 second: `lru.set(key, value, 1000)` or `lru.set(key, value, { maxAge: 1000 })`).
+
 #### .get(key)
 
 Get an item.

test.js

@@ -254,6 +254,16 @@ test('set(expiry) - local expires prevails over the global maxAge', async t => {
 	t.true(lru.has('2'));
 });
 
+test('set(expiry) - local expires prevails over the global maxAge (third argument Number)', async t => {
+	const lru = new QuickLRU({maxSize: 10, maxAge: 1000});
+	lru.set('1', 'test', 100);
+	lru.set('2', 'boo');
+	await delay(300);
+	t.false(lru.has('1'));
+	await delay(200);
+	t.true(lru.has('2'));
+});
+
 test('set(expiry) - set the same item should update the expiration time', async t => {
 	const lru = new QuickLRU({maxSize: 10, maxAge: 150});
 	lru.set('1', 'test');