Benchmark: jsreplaceandregex

Tests:

replace
"-$1,3020.00-".replace("-", "").replace("(", "").replace(")", "")
regexAll
"-$1,3020.00-".replace(/[()-]/g,"")
replaceall
"-$1,3020.00-".replaceAll("-", "").replaceAll("(", "").replaceAll(")", "")
regex
"-$1,3020.00-".replace(/[()-]/,"")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
replace
regexAll
replaceall
regex

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and its components.

**Benchmark Definition**

The benchmark is defined by a JSON object with the following properties:

* `Name`: A unique name for the benchmark, which in this case is "jsreplaceandregex".
* `Description`: A brief description of the benchmark.
* `Script Preparation Code` and `Html Preparation Code`: These are optional fields that can be used to prepare the script or HTML code before running the benchmark. In this case, they are empty.

**Test Cases**

The benchmark consists of four test cases, each defined by a JSON object with the following properties:

* `Benchmark Definition`: A string that represents the JavaScript expression to be executed. The string is enclosed in double quotes and contains one or more special characters (e.g., `-`, `(`, `)`).
* `Test Name`: A name for the test case.

The four test cases are:

1. "replace": Replaces all occurrences of "-" with "" using the `replace()` method.
2. "regexAll": Replaces all occurrences of "-" with "" and replaces all parentheses with empty strings using regular expressions (`/(-)/g`).
3. "replaceall": Replaces all occurrences of "-" with "" and replaces all parentheses with empty strings, similar to `regexAll`, but with the `replaceAll()` method.
4. "regex": Replaces all occurrences of "-" with "" and replaces all parentheses with empty strings using regular expressions (`/(-)/`).

**Options Compared**

The four test cases compare different approaches to replacing special characters in a string:

* `replace()`: The built-in JavaScript method for replacing substrings.
* `replaceAll()`: A method that is similar to `replace()` but performs an all-or-nothing replacement.
* `regexAll` and `regex`: Use regular expressions (`/(-)/g` or `/(-)/`) to replace special characters.

**Pros and Cons**

Here are some pros and cons of each approach:

* `replace()`: Pros: Simple, efficient, and widely supported. Cons: May not be suitable for all use cases (e.g., when using Unicode characters).
* `replaceAll()`: Pros: All-or-nothing replacement can be convenient in certain situations. Cons: Can be slower than `replace()` and may not support Unicode characters.
* `regexAll` and `regex`: Pros: Flexible and powerful, but can be slower due to the overhead of regular expressions. Cons: May require more expertise to use correctly.

**Library**

The benchmark does not explicitly mention a library, but it uses the `replaceAll()` method, which is part of the JavaScript standard library. Regular expressions (`/(-)/g` or `/(-)/`) are also part of the standard library.

**Special JS Feature/Syntax**

There are no special JS features or syntax mentioned in the benchmark definition or test cases.

**Other Alternatives**

Some alternative approaches to replacing special characters in a string include:

* Using `substring()` and `split()`: This approach can be slower than the built-in methods but provides more control over the replacement process.
* Using a third-party library like jQuery: This approach can provide additional features and flexibility, but may also introduce dependencies and overhead.

Keep in mind that these alternatives are not mentioned in the benchmark definition or test cases.

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0

Browser/OS: Firefox 125 on Windows

View result in a separate tab

Test name	Executions per second
replace	10074870.0 Ops/sec
regexAll	9941091.0 Ops/sec
replaceall	6706341.0 Ops/sec
regex	17314674.0 Ops/sec

Related benchmarks:

jsreplaceandregex (version: 0)

test javascript replace and regex benchmark

Comparing performance of: replace vs regexAll vs replaceall vs regex

Created: 6 months ago by: Guest

Jump to the latest result

replace

regexAll

replaceall

regex

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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