Swapping siguratures of delete() & remove() and adding keys() t…

…o get an API closer to a `Map` (leaving `length` vs `size` for now)

README.md

@@ -85,6 +85,19 @@ Gets cached item and moves it to the front
 const item = cache.get("myKey");
 ```
 
+## keys
+### Method
+
+Returns an `Array` of cache item keys.
+
+	return {Array} Array of keys
+
+**Example**
+
+```javascript
+console.log(cache.keys());
+```
+
 ## max
 ### Property
 
@@ -127,7 +140,7 @@ cache.length; // 0 - it's a new cache!
 ## remove
 ### Method
 
-Removes item from cache
+(Deprecated) Removes item from cache
 
 	param  {String} key Item key
 	return {Object}     LRU instance

lib/tiny-lru.js

@@ -5,7 +5,7 @@
  * @copyright 2019
  * @license BSD-3-Clause
  * @link https://github.com/avoidwork/tiny-lru
- * @version 5.0.7
+ * @version 5.1.0
  */
 "use strict";
 
@@ -29,7 +29,30 @@
 		}
 
 		delete (key, bypass = false) {
-			return this.remove(key, bypass);
+			if (bypass === true || this.has(key) === true) {
+				const item = this.cache[key];
+
+				delete this.cache[key];
+				this.length--;
+
+				if (item.next !== empty) {
+					this.cache[item.next].prev = item.prev;
+				}
+
+				if (item.prev !== empty) {
+					this.cache[item.prev].next = item.next;
+				}
+
+				if (this.first === key) {
+					this.first = item.next;
+				}
+
+				if (this.last === key) {
+					this.last = item.prev;
+				}
+			}
+
+			return this;
 		}
 
 		evict () {
@@ -61,31 +84,12 @@
 			return key in this.cache;
 		}
 
-		remove (key, bypass = false) {
-			if (bypass === true || this.has(key) === true) {
-				const item = this.cache[key];
-
-				delete this.cache[key];
-				this.length--;
-
-				if (item.next !== empty) {
-					this.cache[item.next].prev = item.prev;
-				}
-
-				if (item.prev !== empty) {
-					this.cache[item.prev].next = item.next;
-				}
-
-				if (this.first === key) {
-					this.first = item.next;
-				}
-
-				if (this.last === key) {
-					this.last = item.prev;
-				}
-			}
+		keys () {
+			return Object.keys(this.cache);
+		}
 
-			return this;
+		remove (key, bypass = false) {
+			return this.delete(key, bypass);
 		}
 
 		set (key, value, bypass = false) {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "tiny-lru",
   "description": "Tiny LRU cache for Client or Server",
-  "version": "5.0.7",
+  "version": "5.1.0",
   "homepage": "https://github.com/avoidwork/tiny-lru",
   "author": "Jason Mulligan <jason.mulligan@avoidwork.com>",
   "repository": {