Benchmark: for-of vs forEach

Script Preparation code:

var obj = Array.from({ length: 10000 }).map((value, i) => i).reduce((val, v) => { val[v] = v; return val; }, {})

Tests:

native for-of w/ entries
for (const [k, v] of Object.entries(obj)) {}
native forEach w/ entries
Object.entries(obj).forEach(function(v, k) {})
vanilla for-loop w/ Object.keys
const keys = Object.keys(obj); for (let i = 0; i < keys.length; i++) { const v = obj[keys[i]]; }
vanilla for-loop w/ Object.entries
const entries = Object.entries(obj); for (let i = 0; i < entries.length; i++) { }
vanilla for-loop w/ Object.values (no keys)
const values = Object.values(obj); for (let i = 0; i < values.length; i++){ }
native forEach w/ Object.values (no keys)
Object.values(obj).forEach(function(v) {})
native for-in
for (const prop in obj) { if (obj.hasOwnProperty(prop)) { const v = obj[prop]; } }

Rendered benchmark preparation results:

Previous results

Test case name	Result
native for-of w/ entries
native forEach w/ entries
vanilla for-loop w/ Object.keys
vanilla for-loop w/ Object.entries
vanilla for-loop w/ Object.values (no keys)
native forEach w/ Object.values (no keys)
native for-in

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0

Browser/OS: Firefox 106 on Linux

Test name	Executions per second
native for-of w/ entries	1454.2 Ops/sec
native forEach w/ entries	2119.3 Ops/sec
vanilla for-loop w/ Object.keys	4618.6 Ops/sec
vanilla for-loop w/ Object.entries	2257.0 Ops/sec
vanilla for-loop w/ Object.values (no keys)	9992.6 Ops/sec
native forEach w/ Object.values (no keys)	7620.8 Ops/sec
native for-in	901.6 Ops/sec

for-of vs forEach (version: 0)