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Use the features of Hash a little.

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commit 7f4e6605d628aa9f1ea210eec9e1616c5a187ef7 1 parent 446d3fd
@creationix authored
Showing with 5 additions and 2 deletions.
  1. +3 −0  lib/hash.js
  2. +2 −2 lib/nstore.js
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3  lib/hash.js
@@ -27,6 +27,9 @@ var Hash = module.exports = Object.create(Object.prototype, {
accum[i] = callback.call(thisObject, this[key], key, this);
}
return accum;
+ }},
+ length: {get: function length() {
+ return Object.keys(this).length;
@herby
herby added a note

This is not right (I think), keys returns all enumerable properties, that is, alaso methods inhertied from prototype.... getOwnProperties, maybe, really return length of the hash... that is, I think Hash.new().length is at least 2 (for forEach and map)...

@creationix Owner

No, Object.keys explicitly only grabs enumerable keys from the object, not it's prototypes.

@herby
herby added a note

Yes, you're right, sorry. I thought it is on par with for-in.

@creationix Owner

Besides, forEach and map aren't enumerable, so for..in would even work, just a lot slower. And if someone messed with Object.prototype then it might break.

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}}
});
Object.freeze(Hash);
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4 lib/nstore.js
@@ -28,7 +28,7 @@ var nStore = module.exports = Class.extend({
// getter property that returns the number of documents in the database
get length() {
- return Object.keys(this.index).length;
+ return this.index.length;
},
getKey: function getKey() {
@@ -142,7 +142,7 @@ var nStore = module.exports = Class.extend({
}
);
- Object.keys(self.index).forEach(function (key) {
+ self.index.forEach(function (info, key) {
copy(key, group());
});
},
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