Benchmark: Add Zeroes - MeasureThat.net

Tests:

Padding
const addZeros = (value) => { return ("0" + value).padStart(2, "0"); }; let i = 0; for (let j = 0; j < 100; j++) { addZeros(++i); }
Concat
const addZeros = (value) => { return ("0" + value).slice(-2); }; let i = 0; for (let j = 0; j < 100; j++) { addZeros(++i); }
String
const addZeros = (value) => { return String(value).slice(-2); }; let i = 0; for (let j = 0; j < 100; j++) { addZeros(++i); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Padding
Concat
String

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.

**Overview of the Benchmark**

The provided benchmark, "Add Zeroes", measures the performance of JavaScript functions that add zeros to an input value as a string. The benchmark consists of three test cases: "Padding", "Concat", and "String".

**Options Compared in Each Test Case**

1. **Padding**: This test case uses the `padStart` method to pad the input value with zeros.
	* Pros:
		+ Reliable and efficient way to add leading zeros.
	* Cons:
		+ May not be suitable for all use cases, as it requires a fixed width (in this case, 2).
2. **Concat**: This test case uses string concatenation to add zeros to the input value.
	* Pros:
		+ Flexible and widely supported method.
	* Cons:
		+ Can be slower than other methods due to overhead of concatenating strings.
3. **String**: This test case uses the `slice` method to extract the last two characters of the input value as a string, and then prepends zeros to it.
	* Pros:
		+ Simple and efficient way to add trailing zeros.

**Other Considerations**

* The benchmark assumes that the input values are non-negative integers. If negative numbers or non-integer inputs are expected, additional considerations would be needed.
* The use of `++` operator to increment the value inside the loop may introduce performance overhead due to cache coherence and branch prediction.

**Library Usage**

There is no explicit library usage in the benchmark definition or test cases. However, it's worth noting that the use of `padStart`, `concat`, and `slice` methods implies reliance on built-in JavaScript methods or libraries like Lodash (not explicitly mentioned).

**Special JS Features/Syntax**

None are explicitly used in this benchmark.

**Benchmark Preparation Code**

The script preparation code is empty, which suggests that no specific setup or initialization is required for the benchmark to run.

**Alternatives**

Some alternative approaches to adding zeros as a string could include:

* Using a library like ICU (International Components for Unicode) for precise and efficient string manipulation.
* Implementing a custom zero-padding function using bitwise operations.
* Using a regex-based approach to add zeros.

Keep in mind that these alternatives may introduce additional complexity or dependencies not present in the original benchmark.

Related benchmarks:

Add Zeroes (version: 0)

Comparing performance of: Padding vs Concat vs String

Created: 2 years ago by: Guest

Jump to the latest result

Padding

Concat

String

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):