Benchmark: String comp - MeasureThat.net

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

Short
"querty" === "querta"
Long
"qwertyqwerty" === "qwertyquerta"

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Short
Long

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 137 on Android

View result in a separate tab

Short

107.6M/s

Long

105.1M/s

View exact numbers

Test name	Executions per second
✓ Short	107,608,312 Ops/sec
Long	105,057,040 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated one year ago):

LLMs can make mistakes. Check important info.

The benchmark defined in the provided JSON is focused on testing string comparison performance in JavaScript. Specifically, it compares two different string equality checks using the strict equality operator (`===`). Here’s a breakdown of what is tested, the options being compared, their pros and cons, and other relevant considerations.

### Options Compared

1. **Short String Comparison**:
   - **Test Name**: Short
   - **Benchmark Definition**: `"querty" === "querta"`
   - **Purpose**: This test checks the performance of comparing two relatively short strings for equality.

2. **Long String Comparison**:
   - **Test Name**: Long
   - **Benchmark Definition**: `"qwertyqwerty" === "qwertyquerta"`
   - **Purpose**: This test evaluates the performance of comparing two longer strings for equality.

### Pros and Cons of Approaches

#### Short String Comparison
- **Pros**:
  - Faster comparison because the strings are shorter, making it easier for the JavaScript engine to evaluate equality quickly.
  - Beneficial for scenarios where short strings are frequently compared, such as validation checks, flags, or tokens.
  
- **Cons**:
  - Not representative of use cases that involve longer strings, which may have performance characteristics that differ significantly.
  
#### Long String Comparison
- **Pros**:
  - Simulates real-world scenarios where longer strings (like sentences, paragraphs, or large data points) need to be checked for equality, making it more relevant for applications dealing with significant text data.
  
- **Cons**:
  - Slower performance, as longer comparisons increase the computational complexity. This may lead to noticeable delays in performance-sensitive applications.
  
### Other Considerations
- **Execution Speed**: The measurements `ExecutionsPerSecond` for each test case give us a clear indication of how many times the comparison could be executed within a second. For example:
  - The Short comparison had `107,608,312.0` executions per second.
  - The Long comparison had `105,057,040.0` executions per second.
  
  Although both tests performed at high execution rates, the short strings were slightly faster on execution.

- **Browser and Device Factors**: The benchmarks were run on a specific environment (Chrome Mobile 137 on Android), which means that results could vary across different browsers, devices, and operating systems. It's important for developers to understand that the performance might not be universally applicable, and further testing might be needed across different environments to gauge consistent performance.

### Alternatives
Several alternatives exist for checking string equality or performing analogous checks in JavaScript:

1. **Using `==` (loose equality)**: This operator checks equality with type coercion, which can affect performance and should be avoided when strict type equality is necessary.
   
2. **String Comparison Functions**: For more complex scenarios, string comparison libraries or methods (like `localeCompare()`) could be utilized, especially when considering case sensitivity, locale comparisons, or more complex matching rules.

3. **Data Structures**: For frequent string comparisons, using hash tables or sets may offer faster lookups for equality checks at scale, especially when strings are repeated.

In summary, this benchmark focuses on the performance differences in string equality checks for both short and long strings in JavaScript, highlighting the practical implications of each approach, while also noting that execution performance can vary based on numerous factors.

String comp (version: 1)

Comparing performance of: `Short vs Long`

Created: one year ago by: Guest

Go to the latest result

Short

Long

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated one year ago):

String comp (version: 1)

Comparing performance of: Short vs Long

Created: one year ago by: Guest

Go to the latest result

Short

Long

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated one year ago):

Related benchmarks

Comparing performance of: `Short vs Long`