Benchmark: Triple replace instead of regex

Tests:

With triple replace
const input = '<frozen-vendor.68b56447ccf2f3416e7d.js>; rel="script"'; input.replace('<', '') .replace('>', '') .replace(' ', '')
With regex
const input = '<frozen-vendor.68b56447ccf2f3416e7d.js>; rel="script"'; input.replace(/[<> ]/g, '')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
With triple replace
With regex

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36

Browser/OS: Chrome 84 on Mac OS X 10.14.1

View result in a separate tab

Test name	Executions per second
With triple replace	2150549.0 Ops/sec
With regex	4500848.5 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

Let's dive into the explanation of what is being tested on MeasureThat.net.

**Benchmark Purpose:**
The benchmark measures the performance difference between two approaches for removing unwanted characters from a URL string:

1. Using `replace()` method with triple quotes (`<` and `>`).
2. Using regular expressions (`/regex/`) with the `/g` flag.

**Options Compared:**

* **Triple Replace**: This approach uses the `replace()` method to remove `<`, `>`, and spaces from the URL string.
	+ Pros:
		- Simple and easy to understand.
		- Fast execution speed due to the optimized nature of the `replace()` method.
	+ Cons:
		- May not be as flexible or powerful as regular expressions for more complex character removal tasks.
* **Regex**: This approach uses a regular expression pattern (`/<> /g`) to match and remove `<`, `>`, and spaces from the URL string.
	+ Pros:
		- Highly flexible and powerful for removing specific characters, patterns, or even entire substrings.
		- Can be more accurate than triple replace in certain cases.
	+ Cons:
		- May have slower execution speed due to the overhead of compiling and executing regular expressions.

**Library Used:**
In both test cases, no external library is used. The `replace()` method and regular expression engine are built-in JavaScript features.

**Special JS Features/Syntax:**
None mentioned in this benchmark. However, it's worth noting that some browsers might have specific syntax or optimizations for certain features, such as the `const` keyword used here to declare variables.

**Other Considerations:**

* **String Length**: The URL string used in both benchmarks is a fixed length, which minimizes the impact of varying input sizes on the results.
* **Browser and Platform**: The benchmark runs on multiple browsers (Chrome 84) and platforms (Desktop Mac OS X 10.14.1), ensuring the results are representative of different user environments.

**Alternatives:**
If you're looking for alternative approaches to remove unwanted characters from a URL string, consider using:

* **URL decoding libraries**: Such as `url-decode` or `decoded-url`, which can handle more complex URL decodings and sanitization.
* **String replacement libraries**: Like `string-replace` or `replace-string`, which offer more advanced features for character removal and manipulation.

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

Triple replace instead of regex (version: 0)

Comparing performance of: With triple replace vs With regex

Created: 4 years ago by: Guest

Jump to the latest result

With triple replace

With regex

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):