lru-cache - npm Package Compare versions

Comparing version 1.1.0 to 1.1.1

lib/lru-cache.js

@@ -7,3 +7,3 @@ ;(function () { // closure for web browsers
   // just set the global for non-node platforms.
-  ;(function () { return this })().LRUCache = LRUCache
+  this.LRUCache = LRUCache
 }
@@ -17,3 +17,3 @@
 
-function LRUCache (maxLength, lengthCalculator) {
+function LRUCache (maxLength, lengthCalculator, maxAge) {
   if (!(this instanceof LRUCache)) {
@@ -106,9 +106,10 @@ return new LRUCache(maxLength, lengthCalculator)
       cache[key].value = value
-      return
+      return true
     }
 
     var hit = {key:key, value:value, lu:mru++, length:lengthCalculator(value)}
+    if (maxAge) hit.now = Date.now()
 
     // oversized objects fall out of cache automatically.
-    if (hit.length > maxLength) return
+    if (hit.length > maxLength) return false
 
@@ -120,2 +121,3 @@ length += hit.length
     if (length > maxLength) trim()
+    return true
   }
@@ -126,2 +128,6 @@
     var hit = cache[key]
+    if (maxAge && Date.now() - hit.now > maxAge) {
+      this.del(key)
+      return
+    }
     delete lruList[hit.lu]
@@ -157,2 +163,3 @@ if (hit.lu === lru) lruWalk()
     }
+
     lruWalk()
@@ -159,0 +166,0 @@ }

package.json

@@ -1,13 +0,18 @@
-{ "name": "lru-cache"
-, "description": "A cache object that deletes the least-recently-used items."
-, "version": "1.1.0"
-, "author": "Isaac Z. Schlueter <[e-mail]>"
-, "scripts": { "test": "tap test" }
-, "main": "lib/lru-cache.js"
-, "repository": "git://github.com/isaacs/node-lru-cache.git"
-, "devDependencies": { "tap": "" }
-, "license":
-  { "type": "MIT"
-  , "url": "http://github.com/isaacs/node-lru-cache/raw/master/LICENSE"
+{
+  "name": "lru-cache",
+  "description": "A cache object that deletes the least-recently-used items.",
+  "version": "1.1.1",
+  "author": "Isaac Z. Schlueter <[e-mail]>",
+  "scripts": {
+    "test": "tap test"
+  },
+  "main": "lib/lru-cache.js",
+  "repository": "git://github.com/isaacs/node-lru-cache.git",
+  "devDependencies": {
+    "tap": ""
+  },
+  "license": {
+    "type": "MIT",
+    "url": "http://github.com/isaacs/node-lru-cache/raw/master/LICENSE"
   }
 }

README.md

@@ -9,2 +9,3 @@ # lru cache
       , cache = LRU(10, // max length. default = Infinity
+
                     // calculate how "big" each item is
@@ -15,4 +16,10 @@ //
                     // relative size.
-                    function (item) { return item.length })
+                    function (item) { return item.length },
 
+                    // maxAge in ms
+                    // defaults to infinite
+                    // items are not pre-emptively pruned, but they
+                    // are deleted when fetched if they're too old.
+                    1000 * 60)
+
     cache.set("key", "value")
@@ -19,0 +26,0 @@ cache.get("key") // "value"

test/basic.js

@@ -172,1 +172,40 @@ var test = require("tap").test
 })
+
+test("set returns proper booleans", function(t) {
+  var cache = new LRU(5, function (item) { return item.length })
+  t.equal(cache.set("a", "A"), true)
+
+  // should return false for maxLength exceeded
+  t.equal(cache.set("b", "donuts"), false)
+
+  t.equal(cache.set("b", "B"), true)
+  t.equal(cache.set("c", "CCCC"), true)
+  t.end()
+})
+
+test("drop the old items", function(t) {
+  var cache = new LRU(5, null, 50)
+
+  cache.set("a", "A")
+
+  setTimeout(function () {
+    cache.set("b", "b")
+    t.equal(cache.get("a"), "A")
+  }, 25)
+
+  setTimeout(function () {
+    cache.set("c", "C")
+    // timed out
+    t.notOk(cache.get("a"))
+  }, 51)
+
+  setTimeout(function () {
+    t.notOk(cache.get("b"))
+    t.equal(cache.get("c"), "C")
+  }, 90)
+
+  setTimeout(function () {
+    t.notOk(cache.get("c"))
+    t.end()
+  }, 155)
+})

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

11934

increased by12.22%

Lines of code

317

increased by12.81%

Number of lines in readme file

34

increased by25.93%

Worsened metrics

Number of high supply chain risk alerts

1

increased byInfinity%

No dependency changes