Benchmark: object assign vs mutation

Tests:

Object assign
const resumeToken = "abc123" const options = { TableName: 'undefined', IndexName: 'ActiveIndex', KeyConditionExpression: 'active = :active', FilterExpression: 'autoCancelProcessingDate <= :toDate' } const newOptions = Object.assign({}, {...options, ExclusiveStartKey: resumeToken});
Object mutation
const resumeToken = "abc123" const options = { TableName: 'undefined', IndexName: 'ActiveIndex', KeyConditionExpression: 'active = :active', FilterExpression: 'autoCancelProcessingDate <= :toDate' } options.ExclusiveStartKey = resumeToken;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object assign
Object mutation

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 YaBrowser/22.11.3.823 Yowser/2.5 Safari/537.36

Browser/OS: Yandex Browser 22 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Object assign	2530997.0 Ops/sec
Object mutation	956969500.0 Ops/sec

object assign vs mutation (version: 0)

Comparing performance of: Object assign vs Object mutation

Created: one year ago by: Guest

Jump to the latest result

Object assign

Object mutation

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A