Benchmark: Random string 2 - MeasureThat.net

Script Preparation code:

var registeredIds = new Set();
function generate(length) {
    let id = Math.random().toString(36).substring(2, length + 2);
    while(this.registeredIds.has(id)) {
      id = Math.random().toString(36).substring(2, length + 2);
    }

    registeredIds.add(id);
    return id;
}

Tests:

generate
generate(10)
crypto.randomUUID()
crypto.randomUUID()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
generate
crypto.randomUUID()

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Windows

View result in a separate tab

Test name	Executions per second
generate	1325104.4 Ops/sec
crypto.randomUUID()	901684.0 Ops/sec

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Random string 2 (version: 1)

Comparing performance of: generate vs crypto.randomUUID()

Created: one year ago by: Guest

Jump to the latest result

generate

crypto.randomUUID()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A