Benchmark: copy object - MeasureThat.net

Tests:

Object spread
const item = { "input": { "text": "how much is the fish", "intent": "Hyper", "intentScore": 1, "intentFlow": null, "slots": {}, "nlu": { "intentMapperResults": { "finalIntentName": "Hyper", "finalIntentScore": 1, "finalIntentNegated": false, "finalIntentConfirmationSentence": null, "finalIntentDisambiguationSentence": null, "highestFlow": "1111111122222223333333444444", "intentFlow": "1111111122222223333333444444", "intentId": "1111111122222223333333444444", "detailedSlots": {}, "tokens": [ "how", "much", "is", "the", "fish" ] }, "mode": "TextOnly", "type": "howQuestion", "question": { "exists": false }, "intentOutOfState": null, "currentTime": { "year": 2021, "month": 6, "day": 9, "hour": 18, "minute": 4, "second": 34, "milliseconds": 931, "weekday": 3, "dayOfWeek": "Wednesday", "ISODate": "2021-06-09T18:04:34+02:00", "plain": "June 9, 2021 6:04 PM", "grain": "second", "timezoneOffset": "Europe/Berlin" }, }, "context": { "best": { "stuff": "Hyper Hyper" }, "lastText": "hi" } } } const final = { ...item }
Object.assign
const item = { "input": { "text": "how much is the fish", "intent": "Hyper", "intentScore": 1, "intentFlow": null, "slots": {}, "nlu": { "intentMapperResults": { "finalIntentName": "Hyper", "finalIntentScore": 1, "finalIntentNegated": false, "finalIntentConfirmationSentence": null, "finalIntentDisambiguationSentence": null, "highestFlow": "1111111122222223333333444444", "intentFlow": "1111111122222223333333444444", "intentId": "1111111122222223333333444444", "detailedSlots": {}, "tokens": [ "how", "much", "is", "the", "fish" ] }, "mode": "TextOnly", "type": "howQuestion", "question": { "exists": false }, "intentOutOfState": null, "currentTime": { "year": 2021, "month": 6, "day": 9, "hour": 18, "minute": 4, "second": 34, "milliseconds": 931, "weekday": 3, "dayOfWeek": "Wednesday", "ISODate": "2021-06-09T18:04:34+02:00", "plain": "June 9, 2021 6:04 PM", "grain": "second", "timezoneOffset": "Europe/Berlin" }, }, "context": { "best": { "stuff": "Hyper Hyper" }, "lastText": "hi" } } } const final = Object.assign(item)
JSON
const item = { "input": { "text": "how much is the fish", "intent": "Hyper", "intentScore": 1, "intentFlow": null, "slots": {}, "nlu": { "intentMapperResults": { "finalIntentName": "Hyper", "finalIntentScore": 1, "finalIntentNegated": false, "finalIntentConfirmationSentence": null, "finalIntentDisambiguationSentence": null, "highestFlow": "1111111122222223333333444444", "intentFlow": "1111111122222223333333444444", "intentId": "1111111122222223333333444444", "detailedSlots": {}, "tokens": [ "how", "much", "is", "the", "fish" ] }, "mode": "TextOnly", "type": "howQuestion", "question": { "exists": false }, "intentOutOfState": null, "currentTime": { "year": 2021, "month": 6, "day": 9, "hour": 18, "minute": 4, "second": 34, "milliseconds": 931, "weekday": 3, "dayOfWeek": "Wednesday", "ISODate": "2021-06-09T18:04:34+02:00", "plain": "June 9, 2021 6:04 PM", "grain": "second", "timezoneOffset": "Europe/Berlin" }, }, "context": { "best": { "stuff": "Hyper Hyper" }, "lastText": "hi" } } } const final = JSON.parse(JSON.stringify(item));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object spread
Object.assign
JSON

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36

Browser/OS: Chrome 90 on Linux

View result in a separate tab

Test name	Executions per second
Object spread	520165.1 Ops/sec
Object.assign	460265.1 Ops/sec
JSON	38287.4 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

It seems like we're dealing with benchmark results!

Let's take a closer look:

**Benchmark Results:**

There are three benchmark results listed, each representing a different test (Object spread, Object.assign, and JSON).

* **Test 1: Object spread**
	+ RawUAString: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"
	+ Browser: Chrome 90
	+ DevicePlatform: Desktop
	+ OperatingSystem: Linux
	+ ExecutionsPerSecond: 520165.0625
* **Test 2: Object.assign**
	+ RawUAString: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"
	+ Browser: Chrome 90
	+ DevicePlatform: Desktop
	+ OperatingSystem: Linux
	+ ExecutionsPerSecond: 460265.09375
* **Test 3: JSON**
	+ RawUAString: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"
	+ Browser: Chrome 90
	+ DevicePlatform: Desktop
	+ OperatingSystem: Linux
	+ ExecutionsPerSecond: 38287.4453125

These results seem to show the benchmarking performance of different JavaScript operations on a specific browser and device combination.

* The Object spread test shows high execution rates, indicating fast performance.
* The Object.assign test also performs well but at slightly lower rates than Object spread.
* The JSON test is the slowest, with very low execution rates.

What would you like to know or discuss about these results?

Related benchmarks:

copy object (version: 0)

Comparing performance of: Object spread vs Object.assign vs JSON

Created: 3 years ago by: Guest

Jump to the latest result

Object spread

Object.assign

JSON

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):