exclude to remove keys

ljharb · Nov 19, 2010 · 752f64f · 752f64f
1 parent 04b1d50
commit 752f64f
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/lib/hash.js b/lib/hash.js
@@ -89,6 +89,11 @@ function Hash (hash, xs) {
             });
             return Hash(acc);
         },
+        exclude : function (keys) {
+            return self.filter(function (_, key) {
+                return keys.indexOf(key) < 0
+            });
+        },
         end : hash,
         items : hash
     };
@@ -189,6 +194,10 @@ Hash.extract = function (ref, keys) {
     return Hash(ref).extract(keys).items;
 };
 
+Hash.exclude = function (ref, keys) {
+    return Hash(ref).exclude(keys).items;
+};
+
 Hash.concat = function (xs) {
     var hash = Hash({});
     xs.forEach(function (x) { hash.update(x) });