Benchmark: Compare lastindexOf + substr vs split + slice

Tests:

1
var s = 'sdfsdfsdf.asdasdasdasdasd.1231231'; console.log(s.substr(s.lastIndexOf('.') + 1));
2
var s = 'sdfsdfsdf.asdasdasdasdasd.1231231'; console.log(s.split('.').slice(-1));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36 OPR/81.0.4196.60 (Edition utorrent)

Browser/OS: Opera 81 on Windows

View result in a separate tab

Test name	Executions per second
1	294480.0 Ops/sec
2	262651.5 Ops/sec

Compare lastindexOf + substr vs split + slice (version: 0)

new

Comparing performance of: 1 vs 2

Created: 4 years ago by: Guest

Jump to the latest result

1

2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A