Benchmark: Comparison of Request copy

Script Preparation code:

var rawStringFetchArgs = ['http://test.com', { method: 'post', body: JSON.stringify({ property: 'value' }) }]
var urlObjectFetchArgs = [new URL('http://test.com'), { method: 'post', body: JSON.stringify({ property: 'value' }) }]
var requestObjectFetchArgs = [new Request('http://test.com', { method: 'post', body: JSON.stringify({ property: 'value' }) })]
var requestObjectSecondFetchArgs = ['http://test.com', new Request('http://test.com', { method: 'post', body: JSON.stringify({ property: 'value' }) })]

function cloneWithInstanceOf(args) {
  return args.map(arg => arg instanceof Request ? arg.clone() : arg)
}

function cloneWithTypeOf(args) {
  return args.map(arg => !!arg && typeof arg === 'object' && arg.clone && typeof arg.clone === 'function' ? arg.clone() : arg)
}

Tests:

[string, object] - instanceof
cloneWithInstanceOf(rawStringFetchArgs)
[string, object] - typeof
cloneWithTypeOf(rawStringFetchArgs)
[url, object] - instanceof
cloneWithInstanceOf(urlObjectFetchArgs)
[url, object] - typeof
cloneWithTypeOf(urlObjectFetchArgs)
[request] - instanceof
cloneWithInstanceOf(requestObjectFetchArgs)
[request] - typeof
cloneWithTypeOf(requestObjectFetchArgs)
[string, request] - instanceof
cloneWithInstanceOf(requestObjectSecondFetchArgs)
[string, request] - typeof
cloneWithTypeOf(requestObjectSecondFetchArgs)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
[string, object] - instanceof
[string, object] - typeof
[url, object] - instanceof
[url, object] - typeof
[request] - instanceof
[request] - typeof
[string, request] - instanceof
[string, request] - typeof

Fastest: N/A

Slowest: N/A

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Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser/OS: Chrome 107 on Linux

View result in a separate tab

Test name	Executions per second
[string, object] - instanceof	2211667.0 Ops/sec
[string, object] - typeof	6610892.0 Ops/sec
[url, object] - instanceof	2279838.0 Ops/sec
[url, object] - typeof	6673912.0 Ops/sec
[request] - instanceof	47006.9 Ops/sec
[request] - typeof	22420.0 Ops/sec
[string, request] - instanceof	50283.2 Ops/sec
[string, request] - typeof	24058.5 Ops/sec

Comparison of Request copy (version: 0)

Comparing performance of: [string, object] - instanceof vs [string, object] - typeof vs [url, object] - instanceof vs [url, object] - typeof vs [request] - instanceof vs [request] - typeof vs [string, request] - instanceof vs [string, request] - typeof

Created: one year ago by: Guest

Jump to the latest result

[string, object] - instanceof

[string, object] - typeof

[url, object] - instanceof

[url, object] - typeof

[request] - instanceof

[request] - typeof

[string, request] - instanceof

[string, request] - typeof

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A