Run results for: Compare lodash isEmpty and length comparison on strings

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36

Browser: Chrome 93

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
isEmpty empty string	3274454.0 Ops/sec
length empty string	6470927.0 Ops/sec
isEmpty filled string	2693897.2 Ops/sec
length filled string	5822276.5 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

// empty string
window.foo1 = '';

// filled string
window.foo2 = 'Comparing performance of: isEmpty empty strings vs length empty strings isEmpty filled string vs length filled string';

Tests:

isEmpty empty string
_.isEmpty(window.foo1);
length empty string
window.foo1.length === 0;
isEmpty filled string
_.isEmpty(window.foo2);
length filled string
window.foo2.length === 0;