Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
Feature Requests
FAQ
Register
Log In
дедушкины сказки
(version: 0)
Benchmark.js
Comparing performance of:
destr iter vs destr vs ind
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var arr = [3,6,2,4,5];
Tests:
destr iter
var [a,b,c,d,e] = arr;
destr
var {0: a, 1:b, 2:c, 3:d, 4:e} = arr;
ind
var a = arr[0] b = arr[1] c = arr[2] d = arr[3] e = arr[4]
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
destr iter
destr
ind
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser/OS:
Chrome 120 on Windows
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=491497" width="100%" height="500px"></iframe>
destr
7.8M/s
destr iter
7.1M/s
ind
515K/s
View exact numbers
Test name
Executions per second
✓
destr
7,800,184 Ops/sec
destr iter
7,051,935 Ops/sec
ind
514,573 Ops/sec
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 JSON** The provided Benchmark Definition JSON represents a simple benchmark with two test cases: `destr` and `destr iter`. The script preparation code is `var arr = [3,6,2,4,5];`. **Script Preparation Code** The script preparation code `var arr = [3,6,2,4,5];` defines an array variable `arr` containing five integer values. **Options Compared** The benchmark compares three different approaches to destructure the `arr` array: 1. **Destructuring syntax with object literal (`{}`)**: `var {0: a, 1:b, 2:c, 3:d, 4:e} = arr;` * Pros: Concise and readable syntax. * Cons: May be slower due to the overhead of creating an object literal. 2. **Destructuring syntax with array brackets (`[]`)**: `var [a,b,c,d,e] = arr;` * Pros: Similar conciseness and readability as object literal, but potentially faster since it doesn't create a new object. * Cons: May be less readable for those unfamiliar with this syntax. 3. **Manual assignment**: `var a = arr[0]\r\n b = arr[1]\r\n c = arr[2]\r\n d = arr[3]\r\n e = arr[4];` * Pros: Easy to understand and maintain, but verbose and error-prone. * Cons: Slow due to the manual assignment of each variable. **Library Used** The benchmark uses no external libraries. It's a pure JavaScript implementation. **Special JS Feature/Syntax** The `destr` and `destr iter` test cases utilize the new destructuring syntax in JavaScript, which allows for concise assignment of values from an array to multiple variables. **Other Considerations** When writing microbenchmarks, it's essential to consider factors like: * Input data size: How does the benchmark perform with larger or smaller input datasets? * Platform and browser differences: Does the benchmark consistently produce similar results across different browsers and platforms? * Edge cases: Are there any unusual input values or scenarios that could skew the benchmark results? **Alternatives** If you're looking for alternatives to MeasureThat.net, consider: 1. **BenchMarking.js**: A popular JavaScript benchmarking library. 2. **BenchmarkJS**: Another well-established JavaScript benchmarking framework. 3. **jsperf**: A web-based tool for comparing JavaScript performance. These alternatives offer various features and configurations to suit different use cases and performance testing needs.
Related benchmarks
1htrghdr
Arr clear
Comments
Confirm delete:
Do you really want to delete benchmark?