Run results for: _.isEmpty vs !array || !array.length

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0

Browser: Firefox 66

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
_.isEmpty	2592989.0 Ops/sec
!array \|\| !array.length	2006153.0 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Script Preparation code:

window.arr = [];
for (var i = 0; i < 100; i++) {
  arr[i] = 'value' + i;
}

Tests: