Run results for: sparse arrays test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

no sparse arrays

33.3M/s

sparse array

15.2M/s

no sparse arrays with -1 idx

4.6M/s

View exact numbers

Tests:

no sparse arrays
var s = []; s[0] = 0; s[1] = 1; s[2] = 2; s[3] = 3; s[4] = 4; s[5] = 5;
no sparse arrays with -1 idx
var s = []; s[-1] = 0; s[0] = 1; s[1] = 2; s[2] = 3; s[3] = 4; s[4] = 5;
sparse array
var s = []; s[0] = 0; s[3] = 1; s[5] = 2; s[6] = 3; s[9] = 4; s[20] = 5;