Benchmark: Constructor parameters versus object assignment

HTML Preparation code:

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Script Preparation code:

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Tests:

Constructor parameters
class Component { constructor(x, y) { this.x = x; this.y = y; } } for(let i = 0; i < 100000; i++) { const component = new Component(i, i); }
Constructor object
class Component { constructor(params) { const keys = Object.keys(params); for(let i = 0, l = keys.length; i < l; i++) { this[keys[i]] = params[i]; } } } for(let i = 0; i < 100000; i++) { const component = new Component({ x: i, y: i}); }
Factory function with object
const createComponent = (params) => { const component = {}; const keys = Object.keys(params); for(let i = 0, l = keys.length; i < l; i++) { component[keys[i]] = params[i]; } return component; } for(let i = 0; i < 100000; i++) { const component = createComponent({ x: i, y: i}); }
Factory function with definition and parameters
const positionComponentDef = { x: Number, y: Number, }; const createComponent= (def, ...params) => { const component = {}; const keys = Object.keys(def); for(let i = 0, l = keys.length; i < l; i++) { component[keys[i]] = params[i]; } return component; } for(let i = 0; i < 100000; i++) { const component = createComponent(positionComponentDef, i, i); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Constructor parameters
Constructor object
Factory function with object
Factory function with definition and parameters

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Browser/OS: Firefox 133 on Mac OS X 10.15

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Constructor parameters

167/s

Factory function with definition and parameters

149/s

Factory function with object

131/s

Constructor object

51/s

View exact numbers

Test name	Executions per second
✓ Constructor parameters	167 Ops/sec
Factory function with definition and parameters	149 Ops/sec
Factory function with object	131 Ops/sec
Constructor object	51 Ops/sec

Constructor parameters versus object assignment (version: 1)

Comparing performance of: `Constructor parameters vs Constructor object vs Factory function with object vs Factory function with definition and parameters`

Created: one year ago by: Guest

Go to the latest result

Constructor parameters

Constructor object

Factory function with object

Factory function with definition and parameters

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Constructor parameters versus object assignment (version: 1)

Comparing performance of: Constructor parameters vs Constructor object vs Factory function with object vs Factory function with definition and parameters

Created: one year ago by: Guest

Go to the latest result

Constructor parameters

Constructor object

Factory function with object

Factory function with definition and parameters

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Constructor parameters vs Constructor object vs Factory function with object vs Factory function with definition and parameters`