Run results for: lodash forEach vs for i loop forof

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36

Browser: Chrome 84

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
lodash.forEach	2565.9 Ops/sec
native	25043.0 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var values = [{
    a: 30310
}, {
    b: 100303
}, {
    c: 3040494
}]
var valArr = [];

for (let i = 0; i < 20000; i++) {
    valArr.push({
        a: 1,
        b: 2,
        c: 3
    });
}

Tests:

lodash.forEach
var count = 0; _.forEach(valArr, function(v,i) { if (v.a != null) { count++; } })
native
var count = 0; for (let v of valArr) { if (v.a != null) { count++; } }

Run results for: lodash forEach vs for i loop forof

lodash.forEach

native