Benchmark: Regex evaluation

Script Preparation code:

var matchDirective = /(?:webapp-v-)([a-z-]+)(?::([a-zA-Z_.-]+))*/,
    attrName = "webapp-v-bind:class.ifdefined=";

Tests:

Regex
var directivematch = matchDirective.exec(attrName), directivename = directivematch[1], directivopts = directivematch[2];
Substring
var directivematch = matchDirective.exec(attrName), pos = attrName.indexOf(":") directivename = attrName.substring(0, pos), directivopts = attrName.substring(0, pos+1);

Rendered benchmark preparation results:

Previous results

Test case name	Result
Regex
Substring

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Latest run results:

Run details: (Test run date: 2024 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36

Browser/OS: Chrome 65 on Mac OS X 10.13.3

Test name	Executions per second
Regex	3616971.0 Ops/sec
Substring	1014983.0 Ops/sec

Regex evaluation (version: 0)