Run results for: Different functions

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36

Browser: Chrome 75

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
let	106847200.0 Ops/sec
const	103594500.0 Ops/sec

Script Preparation code:

const containsObject = (obj, list) => {
    var i;
    for (i = 0; i < list.length; i++) {
        if (list[i] === obj) {
            return true;
        }
    }

    return false;
};

function containsObject2(obj, list) {
    var i;
    for (i = 0; i < list.length; i++) {
        if (list[i] === obj) {
            return true;
        }
    }

    return false;
};

Tests:

let
const containsObject = (obj, list) => { var i; for (i = 0; i < list.length; i++) { if (list[i] === obj) { return true; } } return false; }; let b = {}; let c = []; let x = containsObject(b, c);
const
function containsObject2(obj, list) { var i; for (i = 0; i < list.length; i++) { if (list[i] === obj) { return true; } } return false; }; let b = {}; let c = []; let x = containsObject2(b, c);

Run results for: Different functions

let

const