Run results for: lodash vs filter

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Lodash	12.2 Ops/sec
Filter	13.7 Ops/sec

Script Preparation code:

var arr = [];
var object = {
    a: 'a',
    b: 'b',
    c: 'c',
    d: 'd',
    e: 'e',
    f: 'f',
    g: 'g',
    h: 'h'
};
for (var i = 0; i <= 100000; i++) {
    arr.push(object);
}

Tests:

Lodash
arr.map(function (element) { return _.pick( element, 'a', 'b', 'c', 'd', 'e', 'f' ); });
Filter
const pick = (obj, keys) => { return keys .filter((key) => key in obj) .reduce((res, key) => ({ ...res, [key]: obj[key] }), {}); }; arr.map(function (element) { return pick( element, ['a', 'b', 'c', 'd', 'e', 'f'] ); });

Run results for: lodash vs filter

Lodash

Filter