Benchmark: Slice vs Slice(0)

Script Preparation code:

var test = Array.from({
    length: 100
}, () => Math.random())

Tests:

slice
let s1 = test.slice()
slice(0)
let s2 = test.slice(0)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
slice
slice(0)

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):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Definition**

The provided JSON represents a benchmark definition for MeasureThat.net, which allows users to create and run JavaScript microbenchmarks. The benchmark definition includes:

* **Name**: A unique name for the benchmark.
* **Description**: An optional description of the benchmark (which is empty in this case).
* **Script Preparation Code**: A snippet of JavaScript code that sets up the test environment. In this case, it creates an array `test` with 100 random numbers using `Array.from()` and the `Math.random()` function.
* **Html Preparation Code**: An optional snippet of HTML code to prepare the testing environment (which is empty in this case).

**Individual Test Cases**

The benchmark defines two individual test cases:

* **slice**: Tests the performance of calling `test.slice()`.
* **slice(0)**: Tests the performance of calling `test.slice(0)`.

These test cases are likely designed to compare the performance of creating an array slice with and without specifying a start index.

**Benchmark Results**

The latest benchmark results show two execution metrics:

* **ExecutionsPerSecond**: The number of executions per second for each test case. In this case, `slice(0)` has a higher executions-per-second value (6592876.5) compared to `slice` (5875148.5).

**Library Used**

There is no specific library mentioned in the benchmark definition or results. However, it's likely that the `Array.from()` function used in the script preparation code relies on the ECMAScript standard.

**Special JS Features/Syntax**

None of the provided test cases use any special JavaScript features or syntax (e.g., async/await, destructuring, arrow functions).

**Alternatives**

If you're interested in running similar benchmarks or exploring other performance testing tools, here are some alternatives:

* MeasureThat.net: The website itself allows users to create and run microbenchmarks.
* jsperf: A tool for creating and running JavaScript performance tests.
* Google's Chrome DevTools: Includes a built-in benchmarking tool that can be used to measure the performance of JavaScript code.
* Node.js Benchmark Suite: A collection of benchmarks for various Node.js-related scenarios.

Keep in mind that these alternatives might require additional setup and configuration to run similar benchmarks as MeasureThat.net.

Related benchmarks:

Slice vs Slice(0) (version: 0)

Comparing performance of: slice vs slice(0)

Created: 5 years ago by: Guest

Jump to the latest result

slice

slice(0)

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):