Benchmark: Spread vs object.assing vs forEach pt4

Tests:

Spread
const a = { email: "abc@mail.com", phone: "12345678", }; const b = { app_version: "AP.12", appsflyer_id: "askldjajkshdlkjh2323h4234j2l3j4h", advertising_id: "23;o4h2l34hl2kj3h4kj23h4", device_os_version: "12", device_name: "Aifon 15 PRO", firebase_instance_id: "2liu3hiuo23y4u23y4ui2y34iy3u4y234", }; const c = { first_name: "lalala", last_name: "dadada" }; let res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...a }; res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...res, ...b }; res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...res, ...c }
Object.assign
const a = { email: "abc@mail.com", phone: "12345678", }; const b = { app_version: "AP.12", appsflyer_id: "askldjajkshdlkjh2323h4234j2l3j4h", advertising_id: "23;o4h2l34hl2kj3h4kj23h4", device_os_version: "12", device_name: "Aifon 15 PRO", firebase_instance_id: "2liu3hiuo23y4u23y4ui2y34iy3u4y234", }; const c = { first_name: "lalala", last_name: "dadada" }; let res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...a }; Object.assign(res, b); Object.assign(res, c);
Foreach
const a = { email: "abc@mail.com", phone: "12345678", }; const b = { app_version: "AP.12", appsflyer_id: "askldjajkshdlkjh2323h4234j2l3j4h", advertising_id: "23;o4h2l34hl2kj3h4kj23h4", device_os_version: "12", device_name: "Aifon 15 PRO", firebase_instance_id: "2liu3hiuo23y4u23y4ui2y34iy3u4y234", }; const c = { first_name: "lalala", last_name: "dadada" }; const res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...a }; Object.keys(b).forEach(key => { res[key] = b[key]; }); Object.keys(c).forEach(key => { res[key] = c[key]; });
just for
const a = { email: "abc@mail.com", phone: "12345678", }; const b = { app_version: "AP.12", appsflyer_id: "askldjajkshdlkjh2323h4234j2l3j4h", advertising_id: "23;o4h2l34hl2kj3h4kj23h4", device_os_version: "12", device_name: "Aifon 15 PRO", firebase_instance_id: "2liu3hiuo23y4u23y4ui2y34iy3u4y234", }; const c = { first_name: "lalala", last_name: "dadada" }; const res = { email: null, phone: null, last_name: null, first_name: null, app_version: null, appsflyer_id: null, advertising_id: null, device_os_version: null, device_name: null, firebase_instance_id: null, ...a }; for (const key in b) { res[key] = b[key]; } for (const key in c) { res[key] = c[key]; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Spread
Object.assign
Foreach
just for

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 17 on iOS 17.0

View result in a separate tab

Test name	Executions per second
Spread	1397394.9 Ops/sec
Object.assign	2380346.5 Ops/sec
Foreach	2271430.2 Ops/sec
just for	6748000.0 Ops/sec

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

LLMs can make mistakes. Check important info.

It looks like you've provided a benchmark result output in a specific format, but I'll do my best to parse it and answer your question.

From the output, I can see that there are four benchmark results:

1. "just for" with 6,748,000 executions per second
2. "Object.assign" with 2,380,346 executions per second
3. "Foreach" with 2,271,430 executions per second
4. "Spread" with 1,397,394 executions per second

It appears that the benchmark results are comparing the performance of different JavaScript methods or techniques.

The question isn't explicitly asked in your output, but I can make some educated guesses:

* Is there a specific question about which method is faster (e.g., `Object.assign` vs. `Foreach`)?
* Are you asking for a comparison between two specific techniques or methods (e.g., `Spread` vs. `Object.assign`)?
* Or perhaps you'd like me to analyze the results and provide some general insights or observations?

Please feel free to clarify or ask a specific question, and I'll do my best to help!

Related benchmarks:

Spread vs object.assing vs forEach pt4 (version: 0)

Comparing performance of: Spread vs Object.assign vs Foreach vs just for

Created: one year ago by: Guest

Jump to the latest result

Spread

Object.assign

Foreach

just for

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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