Benchmark: my local test 2 - MeasureThat.net

Tests:

test
/^(devlocal|dev|sim|beta|prod)$/.test('prod');
includes
['devlocal','','sim','beta','prod'].includes("prod");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test
includes

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

I'd be happy to help you understand what's being tested in this JavaScript microbenchmark.

**Benchmark Overview**

The benchmark measures the execution time of two simple test cases: `test` and `includes`. The benchmark is designed to compare different approaches to achieve the same result.

**Test Case 1: "test"**

The first test case uses a regular expression (`^(devlocal|dev|sim|beta|prod)$`) to match the string `"prod"`. This test case checks if the input matches the specified pattern.

**Approaches Compared**

There are two approaches tested:

1. **Regular Expression**: The `^` symbol is used to start matching from the beginning of the string, and `(devlocal|dev|sim|beta|prod)` is a list of alternatives that match any of the values in the array.
2. **String Inclusion Check**: The `includes()` method is used to check if `"prod"` is present in the array `['devlocal','','sim','beta','prod']`.

**Pros and Cons**

1. Regular Expression:
	* Pros: Can be more efficient for complex patterns, can handle Unicode characters.
	* Cons: May be slower for simple cases like this one, less intuitive than string inclusion checks.
2. String Inclusion Check:
	* Pros: Simple, easy to read, and maintainable code.
	* Cons: May be slower than regular expressions due to the overhead of array searches.

**Test Case 2: "includes"**

The second test case uses a simple `includes()` method check on an array containing various values.

**Library Used**

The `includes()` method is a built-in JavaScript function that checks if a value exists in an array. In this case, it's used to determine if `"prod"` is present in the given array.

**Special JS Feature/Syntax**

None mentioned in the provided code.

**Benchmark Results**

The benchmark results show two test cases with different execution times:

* `test`: Chrome 114 on Desktop (Mac OS X 10.15.7) executed at 957,578,560 executions per second.
* `includes`: Chrome 114 on Desktop (Mac OS X 10.15.7) executed at 636,760,48 executions per second.

**Other Alternatives**

If you wanted to measure the performance of different approaches for this test case, you could also consider using:

1. Loops: Implementing a simple loop to iterate through the array and check each value.
2. String concatenation: Using string concatenation to build the regular expression pattern from scratch.

However, in this specific case, both approaches are straightforward and easy to understand, making them suitable for microbenchmarking.

Related benchmarks:

my local test 2 (version: 0)

Comparing performance of: test vs includes

Created: 2 years ago by: Guest

Jump to the latest result

test

includes

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):