Run results for: lodash omit vs native

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Browser: Chrome 79

Operating system: Mac OS X 10.15.0

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
lodash omit	308097.6 Ops/sec
native delete	9929160.0 Ops/sec

HTML Preparation code:

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

Script Preparation code:

  var allHeaders = {
    'Accept-Encoding': 'gzip,deflate',
    'Accept-Language': 'en-US',
    'Content-Type': 'application/json',
    'User-Agent': `(compatible; Mozilla/5.0; MSIE 9.0; Trident/5.0;})`,
    'Proxy-Connection': 'Keep-Alive',
    Connection: 'Keep-Alive',
    Accept: 'application/hal+json, application/json',
  };

Tests:

lodash omit
_.omit(allHeaders, 'Accept-Encoding');
native delete
delete allHeaders['Accept-Encoding'];

Run results for: lodash omit vs native

lodash omit

native delete