Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
JavaScript spread operator vs object update performance 2
(version: 1)
Comparing performance of:
Using update vs Using Object.assign
Created:
one year ago
by:
Guest
Jump to the latest result
Tests:
Using update
const firstObject = {} firstObject.sample1 = 'Hello world'; firstObject.sample2 = 'foo bar';
Using Object.assign
const firstObject = { } const secondObject = { ...firstObject, sample1: 'foo bar' } const finalObject = { ...secondObject, sample2: 'Hello world' }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Using update
Using Object.assign
Fastest:
N/A
Slowest:
N/A
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/132.0.0.0 Safari/537.36
Browser/OS:
Chrome 132 on Linux
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=581022" width="100%" height="500px"></iframe>
Test name
Executions per second
Using update
119415592.0 Ops/sec
Using Object.assign
34574624.0 Ops/sec
Related benchmarks:
JavaScript spread operator vs Object.assign performance
JavaScript spread operator vs Object.assign performance vs. Native Assignment
JavaScript spread operator vs Object.assign performance - tweld
JavaScript spread operator vs Object.assign performance with empty object
Object.assign vs JavaScript spread operator
JavaScript spread operator vs Object.assign performance: empty src1
JavaScript spread operator vs Object.assign performance: empty src2
JavaScript spread operator vs Object.assign performance 2222
ojjlm nioo;
Comments
Confirm delete:
Do you really want to delete benchmark?