Iteration over all object values

Benchmark created on

Description

Given an object "obj" with lots of properties, compare different solutions to iterate over each value to operate on them.

Setup

const obj = {};
for (let i = 0; i < 10000; ++i) {
	obj['property-' + i] = i;
}
function operate(x) {
	if (x % 2) {
		return ++x;
	}
	return --x;
}

Test runner

Ready to run.

Testing in
TestOps/sec
Using Object.values().forEach()
Object.values(obj).forEach(o => operate(o))
ready
Using for...in
for (let o in obj) {
	operate(o)
}
ready

Revisions

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