Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.48 Safari/537.36
Chrome 67
Windows
Desktop
6 years ago
Test name Executions per second
Optional Chaining 1089263.5 Ops/sec
Lodash 325442.6 Ops/sec
Script Preparation code:
AخA
 
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)