Benchmark: testpow123 - MeasureThat.net

Tests:

yours
function pow(base, power) { if (power === 0) { return 1; } if (power % 2 === 0) { const multiplier = pow(base, power / 2); return multiplier * multiplier; } const multiplier = pow(base, Math.floor(power / 2)); return multiplier * multiplier * base; } var a = pow(2,20)
my
function pow2(x, y) { var q = parseInt((y / 2), 10); if (y % 2 !== 0) { return (x ** q) * (x ** q) * x; } return (x ** q) * (x ** q); } var a = pow2(2,20)

Rendered benchmark preparation results:

Previous results

Test case name	Result
yours
my

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Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Linux; Android 5.1.1; SM-G7102) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.90 Mobile Safari/537.36

Browser/OS: Chrome Mobile 73 on Android 5.1.1

Test name	Executions per second
yours	115701.6 Ops/sec
my	268511.3 Ops/sec

testpow123 (version: 0)