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Object.create() vs literal destructure
(version: 2)
Comparing performance of:
Object.create() vs Destructure vs Object.create() null proto vs Destructure null proto
Created:
4 years ago
by:
Registered User
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Script Preparation code:
var emptyPair = { pair: '', svc: '', rate: 0, rateId: '', limit: 0, min: 0, minerFee: 0, unavailable: true, details: '', maxLimit: 0, chainPair: '', } var emptyPairNullProto = Object.create(null) emptyPairNullProto.pair = '' emptyPairNullProto.svc = '' emptyPairNullProto.rate = 0 emptyPairNullProto.rateId = '' emptyPairNullProto.limit = 0 emptyPairNullProto.min = 0 emptyPairNullProto.minerFee = 0 emptyPairNullProto.unavailable = true emptyPairNullProto.details = '' emptyPairNullProto.maxLimit = 0 emptyPairNullProto.chainPair = ''
Tests:
Object.create()
const a = Object.create(emptyPair, { details: { value: 'new details'}, pair: {value: 'from_to'} })
Destructure
const b = { ...emptyPair, details: 'new details', pair: 'from_to', }
Object.create() null proto
const c = Object.create(emptyPairNullProto, { details: { value: 'new details'}, pair: {value: 'from_to'} })
Destructure null proto
const d = { ...emptyPairNullProto, details: 'new details', pair: 'from_to', }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
Object.create()
Destructure
Object.create() null proto
Destructure null proto
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **Benchmark Definition** The benchmark measures the performance difference between two approaches: using `Object.create()` with an object as its prototype, and literal destructuring to create objects. **Options compared** There are four test cases: 1. **`Object.create()` with an object as its prototype**: This approach uses the `Object.create()` method to create a new object that inherits properties from a given object (`emptyPairNullProto`). The second argument to `Object.create()` is an object that defines the properties to be inherited by the new object. 2. **Literal destructuring**: This approach uses the syntax `{...obj, prop: value}` to create a new object with the same properties as `obj`, but with additional properties (`details` and `pair`) added manually. **Pros and Cons of each approach** 1. **`Object.create()`**: * Pros: + More explicit and readable way to define inherited properties. + Can be more efficient when working with complex object hierarchies. * Cons: + May require more boilerplate code, which can increase execution time. + Not as concise or elegant as literal destructuring. 2. **Literal destructuring**: * Pros: + More concise and expressive syntax. + Can be faster due to reduced overhead of method calls and object creation. * Cons: + May be less readable for developers unfamiliar with this syntax. + Can lead to confusion when working with complex object hierarchies. **Library usage** There is no explicit library mentioned in the benchmark definition. However, `Object.create()` is a built-in JavaScript method, while literal destructuring is a shorthand syntax that relies on implicit conversions between objects and property assignments. **Special JS features or syntax** The benchmark uses the following special feature: 1. **Spread operator (`{...}`)**: This operator allows you to create a new object by copying properties from an existing object (in this case, `emptyPairNullProto`). The spread operator is a shorthand for creating a new object with the same properties as the original object, plus additional properties. **Other alternatives** For comparison, other approaches could include: 1. **Function constructor**: Creating objects using the function constructor syntax (`new Func()`). 2. **Class declaration**: Using class declarations to create objects. 3. **Other libraries or frameworks**: Depending on the specific use case, alternative libraries or frameworks might be used to achieve similar results. Keep in mind that the benchmark's focus is on comparing the performance of `Object.create()` with literal destructuring, so other alternatives are not necessarily relevant to this specific comparison.
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