Benchmark: For in vs Object.*.forEach 10000

Script Preparation code:

var obj = new Object()
var keys = (new Array(10000)).fill(0).map((x, i) => { return i + 1 })
keys.forEach((x) => { obj['prop' + x] = x })

Tests:

For In
for (var key in obj) { if (obj.hasOwnProperty(key)) console.log(obj[key]) }
Object values forEach
Object.values(obj).forEach(value => console.log(value))
Object keys forEach
Object.keys(obj).forEach(key => console.log(obj[key]))
Object entries forEach
Object.entries(obj).forEach([key, value] => console.log(key,"->",value))

Rendered benchmark preparation results:

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For in vs Object.*.forEach 10000 (version: 0)