Run results for: object assign vs mutation

Run details:

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: Yandex Browser 22

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

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

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;

Run results for: object assign vs mutation

Object assign

Object mutation