Fix #39 Error 1001 when using the Node module

2015-01-15 12:34:47 +01:00
parent 6521d24925
commit 0f00111373
5 changed files with 59 additions and 33 deletions
@@ -0,0 +1,54 @@
+/**
+ * Push items and count them
+ */
+
+function collection() {
+    /* jshint validthis: true */
+    this.items = {};
+}
+
+collection.prototype = {
+    push: function(item) {
+        if (typeof this.items[item] === 'undefined') {
+            this.items[item] = {
+                cnt: 1
+            };
+        } else {
+            this.items[item].cnt++;
+        }
+    },
+
+    sort: function() {
+        var newItems = {},
+            sortedKeys;
+
+        // sort in descending order (by cnt)
+        sortedKeys = Object.keys(this.items).sort((function(a, b) {
+            return this.items[b].cnt - this.items[a].cnt;
+        }).bind(this));
+
+        // build new items dictionary
+        sortedKeys.forEach(function(key) {
+            newItems[key] = this.items[key];
+        }, this);
+
+        this.items = newItems;
+        return this;
+    },
+
+    forEach: function(callback) {
+        Object.keys(this.items).forEach(function(key) {
+            callback(key, this.items[key].cnt);
+        }, this);
+    },
+
+    has: function(item) {
+        return (typeof this.items[item] !== 'undefined');
+    },
+
+    getLength: function() {
+        return Object.keys(this.items).length;
+    }
+};
+
+module.exports = collection;