Benchmark: replace test 122311231 2

HTML Preparation code:

String.prototype.replaceAll = function(search, replacement) {
    var target = this;
    return target.replace(new RegExp(search, 'g'), replacement);
};

Tests:

a1
"\"Kelly\"".replace(/"/g, "");
a2
"\"Kelly\"".replaceAll("\"", "");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
a1
a2

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what is being tested.

**Benchmark Definition**

The benchmark definition specifies the script to be executed, which is a JavaScript string replacement operation. The test case uses two different methods:

1. `String.prototype.replace()`: This method takes three arguments: the pattern to search for (in this case, `/"/g`), the replacement value (`"\""`), and an optional global flag (`'g'`). The `replace()` method returns a new string with all occurrences of the specified pattern replaced.
2. `String.prototype.replaceAll()`: This method is not a standard JavaScript method. Instead, it appears to be a custom implementation of the `replace()` method, defined in the "Html Preparation Code" section of the benchmark definition.

**Options Compared**

The two options being compared are:

1. `String.prototype.replace()`
2. `String.prototype.replaceAll()`

**Pros and Cons**

1. **`String.prototype.replace()`**:
	* Pros: This is a standard JavaScript method, widely supported by most browsers.
	* Cons: It may not be as efficient as custom implementations for specific use cases.
2. **`String.prototype.replaceAll()`**:
	* Pros: Custom implementation may optimize performance for this specific use case.
	* Cons: Not a standard JavaScript method, which means it may not be widely supported by browsers.

**Library and Purpose**

There is no explicit library mentioned in the benchmark definition. However, the `replace()` method is part of the JavaScript String prototype, which is a built-in object in JavaScript.

**Special JS Feature or Syntax**

The custom implementation `String.prototype.replaceAll()` uses a non-standard syntax (`\\"` instead of `"\\")`. This may be specific to certain text editors or IDEs that allow backslash escapes.

**Alternative Approaches**

Other alternatives for string replacement could include:

1. Using regular expressions with the `RegExp.prototype.replace()` method.
2. Implementing a custom string replacement algorithm using bitwise operations or other low-level techniques.
3. Using a library like jQuery's `replaceAll()` method (although this would require additional dependencies).

**Benchmark Preparation Code**

The "Html Preparation Code" section defines the custom implementation of `String.prototype.replaceAll()`. This code is executed before running the benchmark, and its purpose is to make the `replaceAll()` method available as a standard JavaScript method.

Overall, the benchmark tests the performance difference between two string replacement methods: the standard `replace()` method and a custom implementation (`replaceAll()`).

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

Browser/OS: Firefox 92 on Windows

View result in a separate tab

Test name	Executions per second
a1	12571409.0 Ops/sec
a2	13132397.0 Ops/sec

Related benchmarks:

replace test 122311231 2 (version: 0)

aaaaaa

Comparing performance of: a1 vs a2

Created: 3 years ago by: Guest

Jump to the latest result

a1

a2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):