Benchmark: Test() Vs Exec()

Test() Vs Exec() (version: 2)

Test() Vs Exec() A small test to analyse the performance of two similar but different functions. The first Test(): Executes the search for a match between a regular expression and a specified string. Returns true or false. The second Exec() Used to retrieve the matches when matching a string against a regular expression. Returns an array with the matches or null if there are none.

Comparing performance of: RegEx.test vs String.match

Created: one year ago by: Registered User

Jump to the latest result

HTML Preparation code:

<div>
    <h1>Test() Vs Exec()</h1>
    <h2>A small test to analyse the performance of two similar but different functions.</h2>
    <p>The first <b>Test()</b>: Executes the search for a match between a regular expression and a specified string.<br>
        Returns true or false.
    </p>
    <p>The second <b>Exec()</b>: Used to retrieve the matches when matching a string against a regular expression.<br>
        Returns an array with the matches or null if there are none.
    </p>
</div>

Script Preparation code:

var string = "Hello world!";
var regex = /[A-Z][a-z]+ [a-z]+/;

Tests:

RegEx.test
regex.test(string);
String.match
string.match(regex);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
RegEx.test
String.match

Fastest: N/A

Slowest: N/A

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

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 11 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser/OS: Chrome 103 on Mac OS X 10.12.6

View result in a separate tab

Test name	Executions per second
RegEx.test	2463159.0 Ops/sec
String.match	2228322.0 Ops/sec