lru-cache - npm Package Compare versions

Comparing version 2.0.4 to 2.1.0

lib/lru-cache.js

@@ -40,2 +40,4 @@ ;(function () { // closure for web browsers
 
+  var allowStale = options.stale || false
+
   var maxAge = options.maxAge || null
@@ -147,2 +149,11 @@
 
+  this.has = function (key) {
+    if (!hOP(cache, key)) return false
+    var hit = cache[key]
+    if (maxAge && (Date.now() - hit.now > maxAge)) {
+      return false
+    }
+    return true
+  }
+
   this.get = function (key) {
@@ -153,3 +164,3 @@ if (!hOP(cache, key)) return
       this.del(key)
-      return
+      return allowStale ? hit.value : undefined
     }
@@ -156,0 +167,0 @@ delete lruList[hit.lu]

package.json

 {
   "name": "lru-cache",
   "description": "A cache object that deletes the least-recently-used items.",
-  "version": "2.0.4",
+  "version": "2.1.0",
   "author": "Isaac Z. Schlueter <[e-mail]>",
@@ -6,0 +6,0 @@ "scripts": {

test/basic.js

@@ -268,1 +268,35 @@ var test = require("tap").test
 })
+
+test("has()", function(t) {
+  var cache = new LRU({
+    max: 1,
+    maxAge: 10
+  })
+
+  cache.set('foo', 'bar')
+  t.equal(cache.has('foo'), true)
+  cache.set('blu', 'baz')
+  t.equal(cache.has('foo'), false)
+  t.equal(cache.has('blu'), true)
+  setTimeout(function() {
+    t.equal(cache.has('blu'), false)
+    t.end()
+  }, 15)
+})
+
+test("stale", function(t) {
+  var cache = new LRU({
+    maxAge: 10,
+    stale: true
+  })
+
+  cache.set('foo', 'bar')
+  t.equal(cache.get('foo'), 'bar')
+  t.equal(cache.has('foo'), true)
+  setTimeout(function() {
+    t.equal(cache.has('foo'), false)
+    t.equal(cache.get('foo'), 'bar')
+    t.equal(cache.get('foo'), undefined)
+    t.end()
+  }, 15)
+})

No alert changes

Improved metrics

Total package byte prevSize

14904

increased by6.81%

Lines of code

433

increased by9.9%

No dependency changes