Comparison of filtering nulls/undefineds from an array (v6)

Revision 6 of this benchmark created on

Setup

const maybeNumbers = [];
for (i = 0; i < 100; i++) {
	if (Math.random() > 0.5) {
		maybeNumbers.push(10 * Math.random() | 0)
	} else {
		maybeNumbers.push(null);
	}
}

Test runner

Ready to run.

Testing in
TestOps/sec
filter(Boolean)
const numbers = maybeNumbers.filter(Boolean);
ready
filter(item => item != null)
const numbers = maybeNumbers.filter(item => item != null);
ready
filter(isDefined)
function isDefined(item) {
	return item != null;
}

const numbers = maybeNumbers.filter(isDefined);
ready
filter(isDefined) - arrow function
const isDefined = (item) => item != null;

const numbers = maybeNumbers.filter(isDefined);
ready

Revisions

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