Benchmark: Replace vs ReplaceAll - TEST

Tests:

ReplaceAll
'1,000,000'.replaceAll(',', '')
Replace
'1,000,000'.replace(/,/g, '')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
ReplaceAll
Replace

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
ReplaceAll	9535997.0 Ops/sec
Replace	13791931.0 Ops/sec

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

LLMs can make mistakes. Check important info.

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

**Benchmark Overview**

The benchmark compares two approaches for removing commas from a string: `replaceAll()` and `replace()`. The benchmark is designed to measure the performance difference between these two methods on large strings.

**Options Being Compared**

Two options are being compared:

1. **`replaceAll()`**: This method replaces all occurrences of a specified pattern with another value.
2. **`replace()`**: This method replaces only the first occurrence of a specified pattern with another value.

**Pros and Cons of Each Approach**

* `replaceAll()`:
	+ Pros: More flexible, as it allows replacing multiple patterns in a single operation. Can be faster for some cases (e.g., when the replacement string is shorter than the original).
	+ Cons: May be slower if the pattern to replace has multiple occurrences.
* `replace()`: 
	+ Pros: Typically faster, especially for strings with only one or few occurrences of the pattern.
	+ Cons: Less flexible, as it can only replace a single occurrence.

**Library and Purpose**

There is no library used in this benchmark. The JavaScript built-in methods `replaceAll()` and `replace()` are being compared.

**Special JS Feature/ Syntax**

None mentioned in the provided code snippet.

**Other Alternatives**

If you need to remove commas from a string, other approaches could be:

* Using regular expressions with `String.prototype.replace()` (e.g., using a regex pattern like `/,/g`).
* Using `String.prototype.split()` and then joining the parts back together without commas.
* Using a custom implementation of string manipulation functions.

However, for this specific benchmark, comparing `replaceAll()` and `replace()` is a reasonable approach to measure performance differences between these two built-in methods.

**Benchmark Preparation Code**

The script preparation code is null, which means that the benchmark is likely using an existing JavaScript environment (e.g., Node.js or web browser) to run the tests. The HTML preparation code is also null, indicating that no additional setup is required for the benchmark execution.

Let me know if you have any further questions!

Related benchmarks:

Replace vs ReplaceAll - TEST (version: 0)

Comparing performance of: ReplaceAll vs Replace

Created: 2 years ago by: Guest

Jump to the latest result

ReplaceAll

Replace

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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