Run results for: includes vs loop

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Browser: Chrome 104

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
function	336249.1 Ops/sec
includes	869098.9 Ops/sec

Script Preparation code:

var array = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"];
function search(arr, has) {
	for (let e of arr) {
    	if (e === has) {
        	return true;
        }
    }
}

Tests:

function
search(array, "a"); search(array, "c"); search(array, "x"); search(array, "z"); search(array, "f"); search(array, "h"); search(array, "x"); search(array, "i"); search(array, "a"); search(array, "n"); search(array, "r"); search(array, "y");
includes
array.includes("a"); array.includes("c"); array.includes("x"); array.includes("z"); array.includes("f"); array.includes("h"); array.includes("x"); array.includes("i"); array.includes("a"); array.includes("n"); array.includes("r"); array.includes("y");