Run results for: lodash isUndefined vs typeof === undefined (take 2)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 5 months ago

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

AخA
 
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var foo;

var foo;

Tests:

lodash.isUndefined
if (_.isUndefined(foo)) { foo; }
if (_.isUndefined(foo)) {
foo;
}
Native js
if (foo === undefined) { foo; }
if (foo === undefined) {
foo;
}
simplify native js
if (!foo) { foo; }
if (!foo) {
foo;
}