Darwin x64 - 13.3.0
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.10.29</td><td>8.59 GB</td><td>Intel(R) Core(TM) i5-2500S CPU @ 2.70GHz</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>280,693 ops/sec ±12.63% (32 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>418,331 ops/sec ±12.81% (33 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>945,314 ops/sec ±9.39% (39 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length

Linux x64 - 3.8.4-1-ARCH
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.10.30</td><td>519 MB</td><td>QEMU Virtual CPU version 1.0</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>23,629 ops/sec ±3.41% (50 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>34,407 ops/sec ±13.37% (49 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>97,526 ops/sec ±4.26% (55 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length

Linux x64 - 3.13.0-34-generic
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.10.29</td><td>8.30 GB</td><td>Intel(R) Core(TM) i5-4200M CPU @ 2.50GHz</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>173,260 ops/sec ±14.62% (29 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>265,177 ops/sec ±14.08% (26 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>598,904 ops/sec ±12.76% (35 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length

Darwin x64 - 13.2.0
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.11.13</td><td>4.29 GB</td><td>Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>238,620 ops/sec ±10.80% (40 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>407,806 ops/sec ±6.94% (35 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>1,000,131 ops/sec ±9.02% (43 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length

Darwin x64 - 13.3.0
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.11.13</td><td>8.59 GB</td><td>Intel(R) Core(TM) i5-2500S CPU @ 2.70GHz</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>201,065 ops/sec ±14.35% (28 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>313,895 ops/sec ±10.94% (26 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>844,125 ops/sec ±13.43% (33 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length

Darwin x64 - 13.3.0
-----

<table><tr><td><b>node</b></td><td><b>memory</b></td><td><b>cpu</b></td></tr><tr><td>v0.10.31</td><td>8.59 GB</td><td>Intel(R) Core(TM) i5-2500S CPU @ 2.70GHz</td></tr></table>

#### Benchmark Results ####

<table><tr><td><b>prop in Object</b></td><td>241,309 ops/sec ±18.66% (28 runs sampled)</td></tr><tr><td><b>forEach Object#keys</b></td><td>395,387 ops/sec ±15.01% (32 runs sampled)</td></tr><tr><td><b>for Object#keys.length</b></td><td>871,739 ops/sec ±17.58% (35 runs sampled)</td></tr></table>

> Notes:
> - Fastest is for Object#keys.length