Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
testing converter
(version: 0)
Comparing performance of:
A vs B
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
const array = new Array(1000000).fill(3)
Tests:
A
const array = new Array(1000000).fill(3) const x = array.map(column => String.fromCharCode(64 + column));
B
const array = new Array(1000000).fill(3) const x = array.map(column => ['A', 'B', 'C', 'D', 'E', 'F'][column - 1]);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
A
B
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested, the options compared, their pros and cons, and other considerations. **Benchmark Definition** The benchmark definition json represents a JavaScript microbenchmark that can be executed on MeasureThat.net. It consists of two parts: 1. **Script Preparation Code**: This code is run once before each test case to prepare the environment. ```javascript const array = new Array(1000000).fill(3); ``` This creates an array of 1 million elements, all filled with the value `3`. The purpose of this code is likely to initialize a large dataset that can be used in subsequent test cases. 2. **Html Preparation Code**: This field is empty for this benchmark, indicating that no HTML preparation is required. **Individual Test Cases** The benchmark consists of two individual test cases: 1. **Test Case A** ```javascript const array = new Array(1000000).fill(3) const x = array.map(column => String.fromCharCode(64 + column)); ``` This code maps over the `array` and applies a transformation to each element using `String.fromCharCode`. The transformation involves converting the value of each element (`3`) to its corresponding ASCII character. This test case likely measures the performance of string conversion or mapping operations. 2. **Test Case B** ```javascript const array = new Array(1000000).fill(3) const x = array.map(column => ['A', 'B', 'C', 'D', 'E', 'F'][column - 1]); ``` This code maps over the `array` and applies a transformation to each element using an array index. The transformation involves indexing into an array of characters (`['A', 'B', 'C', 'D', 'E', 'F']`) and returning the corresponding character. This test case likely measures the performance of string access or mapping operations. **Latest Benchmark Result** The latest benchmark result shows the execution times for each test case, measured in executions per second (FPS). The results are: * **Test Case A**: 11.89591121673584 FPS * **Test Case B**: 1.4134275913238525 FPS These results indicate that Test Case A is significantly faster than Test Case B. **Library Usage** Neither of the test cases uses any external libraries, indicating that the performance characteristics being measured are inherent to JavaScript itself. **Special JS Features or Syntax** There is no special JavaScript feature or syntax used in these benchmark definitions. They appear to be standard JavaScript code snippets. **Other Alternatives** If you wanted to create similar benchmarks on MeasureThat.net, you would: 1. Define a new benchmark with your own script preparation and HTML preparation codes. 2. Create one or more individual test cases, each with its own specific performance characteristics (e.g., array manipulation, string access, etc.). 3. Run the benchmarks and compare their results to identify any performance differences. Keep in mind that MeasureThat.net provides a range of pre-built benchmarks for popular JavaScript operations, so you may not need to create your own custom benchmarks from scratch.
Related benchmarks:
Array creation - 09/08/2018
Arrays
array.fill VS array.push
Array cloning 2023
fill test
Comments
Confirm delete:
Do you really want to delete benchmark?