Run results for: Lodash isEmpty vs Length < 1 check

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: 28 days ago

Test name	Executions per second
Empty array - Length	13095935.0 Ops/sec
Empty array - lodash	6554953.5 Ops/sec
String array - length	12975452.0 Ops/sec
String array - lodash	6684103.0 Ops/sec
Obj array - length	12914404.0 Ops/sec
Obj array - lodash	6541496.0 Ops/sec

HTML Preparation code:

<script src="lodash.js"></script>

Script Preparation code:

// empty array
window.foo1 = [];

// array of strings
window.foo2 = ['a', 'b', 'c', 'd', 'e'];

// array of objects
window.foo3 = [{ a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }];

Tests:

Empty array - Length
window.foo1.length < 1;
Empty array - lodash
_.isEmpty(window.foo1);
String array - length
window.foo2.length < 1;
String array - lodash
_.isEmpty(window.foo2);
Obj array - length
window.foo3.length < 1;
Obj array - lodash
_.isEmpty(window.foo3);

Run results for: Lodash isEmpty vs Length < 1 check

Checking length comparison vs isEmpty comparison

Empty array - Length

Empty array - lodash

String array - length

String array - lodash

Obj array - length

Obj array - lodash