Benchmark: Object.values, For...in, Object.keys Object.entires with a large objct

Script Preparation code:

var a = {};
for (var i = 0; i<=100000; i++) {
	a[Math.random().toString(32).substr(2, 23)] = Math.random()*120;
}

Tests:

For ... in length test
let sum = 0; for (var x in a ) { sum++; }
Object.keys length test
Object.keys(a).length
Object.values length test
Object.values(a).length
Object.entries length test
Object.entries(a).length
For In Reduce test
let sum = 0; for (var x in a ) { sum += a[x] }
Object.keys Reduce test
Object.keys(a).reduce((prev, curr) => { var sum = prev + a[curr]; return sum; }, 0)
Object.values Reduce test
Object.values(a).reduce((prev, curr) => { return prev + curr; }, 0);
Object.entries reduce test
Object.entries(a).reduce((prev, curr) => { return prev + curr[1] }, 0)

Rendered benchmark preparation results:

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Object.values, For...in, Object.keys Object.entires with a large objct (version: 0)