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Run results for: Manual optional Chaining versus _.get lodash versus ? optional chaining

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15
Safari 13
Mac OS X 10.14.6
Desktop
4 years ago
Test name Executions per second
Optional Chaining 3127876.8 Ops/sec
Lodash 1367434.9 Ops/sec
actual optional chaining 6484132.5 Ops/sec
HTML Preparation code:
AخA
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
 
var obj = {a: {b: {c: {d: 1}}}}
var badObj = {}
Tests:

  • Optional Chaining

     
    (obj.a == null ? undefined : obj.a.b == null ? undefined : obj.a.b.c == null ? undefined : obj.a.b.c.d) || 2
    (badObj.a == null ? undefined : badObj.a.b == null ? undefined : badObj.a.b.c == null ? undefined : badObj.a.b.c.d) || 2

  • Lodash

     
    _.get(obj, "a.b.c.d", 2)
    _.get(badObj, "a.b.c.d", 2)

  • actual optional chaining

     
    obj?.a?.b?.c?.d || 2
    badObj?.a?.b?.c?.d || 2