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sort destruct vs sort
(version: 0)
Comparing performance of:
sort vs sort1
Created:
4 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var a = [{session:2},{session:1}]
Tests:
sort
a.sort((a,b) => b.session - a.session)
sort1
a.sort(({session:a}, {session:b}) => b-a);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
sort
sort1
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36
Browser/OS:
Chrome 151 on Mac OS X 10.15.7
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<iframe src="https://measurethat.net/Embed?id=632821" width="100%" height="500px"></iframe>
sort1
129.8M/s
sort
129.6M/s
View exact numbers
Test name
Executions per second
✓
sort1
129,782,808 Ops/sec
sort
129,593,632 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what's being tested. **Benchmark Overview** The benchmark is designed to compare two approaches for sorting an array of objects with a single property (`session`) in descending order. **Script Preparation Code** The script preparation code generates an array `a` containing two objects: `{session: 2}` and `{session: 1}`. This is the starting point for the sorting tests. **Html Preparation Code** There is no HTML preparation code, which means that the benchmark is focused solely on the JavaScript execution. **Benchmark Test Cases** The benchmark consists of two test cases: 1. `sort`: This test case uses a traditional arrow function to sort the array in descending order by the `session` property. ```javascript a.sort((a, b) => b.session - a.session); ``` 2. `sort1`: This test case uses an object destructuring assignment to sort the array in descending order by the `session` property. ```javascript a.sort(({ session: a }, { session: b }) => b - a); ``` **Libraries and Features** There are no external libraries used in this benchmark. **Special JS Features or Syntax** The use of object destructuring assignment (`({ session: a }, { session: b })`) is a modern JavaScript feature that allows for concise and expressive code. It's a relatively recent addition to the language, introduced in ECMAScript 2015 (ES6). **Pros and Cons** **Traditional Arrow Function Approach (`sort`)** Pros: * Widely supported by most browsers and environments * Easy to read and maintain * Can be used with older versions of JavaScript Cons: * May not be as concise or expressive as other approaches * May require more memory allocation for the temporary variable `b - a` **Object Destructuring Assignment Approach (`sort1`)** Pros: * Concise and expressive code * Allows for a more elegant and readable sorting algorithm * Can potentially reduce memory allocation overhead Cons: * May not be supported by older browsers or environments * Requires knowledge of object destructuring assignment syntax **Other Alternatives** Some alternative approaches to sorting arrays in descending order might include: 1. Using the `Array.prototype.sort()` method with a custom comparison function that subtracts the values of two objects. 2. Using a library like Lodash, which provides a `sortBy` function for sorting arrays based on a specified key. 3. Using a more specialized library or framework that provides optimized sorting algorithms. However, in this specific benchmark, the use of object destructuring assignment is likely intended to showcase its concise and expressive nature, while still maintaining compatibility with older environments.
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