Benchmark: undefined vs. typeof vs. in vs. hasOwnProperty 2

Script Preparation code:

var obj = { a: 1, b: 2, c: 3, d: 4, e: 5 };

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
in
hasOwnProperty

ⓘ Get performance results from real users on your website with Request Metrics.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:76.0) Gecko/20100101 Firefox/76.0

Browser/OS: Firefox 76 on Linux

Test name	Executions per second
in	147353700.0 Ops/sec
hasOwnProperty	170827400.0 Ops/sec

undefined vs. typeof vs. in vs. hasOwnProperty 2 (version: 0)