Benchmark: string vs array comparison

Script Preparation code:

function stringCompare() {
  return "abc" > "adc"
}

function arrayCompare(x) {
  return [97, 98, 99] >  [97, 99, 100]
}

Tests:

string compare
stringCompare();
array includes
arrayCompare();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
string compare
array includes

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:146.0) Gecko/20100101 Firefox/146.0

Browser/OS: Firefox 146 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
string compare	913447616.0 Ops/sec
array includes	1838900.4 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared options, pros and cons, and other considerations.

**Benchmark Definition**

The JSON defines two test cases: `stringCompare` and `arrayCompare`. Both functions are designed to compare strings or arrays using a specific comparison operator (`>`). The purpose of this benchmark is to measure the performance of JavaScript engines in executing these types of comparisons.

**Script Preparation Code**

The provided script preparation code defines two functions:

* `stringCompare()`: Compares two strings, `"abc"` and `"adc"`, using the greater-than operator. This function is likely testing string comparison optimization.
* `arrayCompare(x)`: Compares an array `[97, 98, 99]` with a number `100` using the greater-than operator. This function is likely testing array comparison optimization.

**Html Preparation Code**

There is no HTML preparation code provided, which means that the benchmark does not involve any HTML-related processing or rendering.

**Options Compared**

Two options are compared:

1. **String Comparison**: The first test case (`stringCompare`) measures the performance of string comparison using the greater-than operator.
2. **Array Comparison**: The second test case (`arrayCompare`) measures the performance of array comparison using the greater-than operator.

**Pros and Cons of Different Approaches**

Different JavaScript engines may optimize string and array comparisons in various ways, leading to varying performance outcomes. Here are some pros and cons of different approaches:

* **String Comparison**:
	+ Pros: May utilize specialized string comparison algorithms or cache string literals to improve performance.
	+ Cons: Can be slower than other data types due to the overhead of comparing strings.
* **Array Comparison**:
	+ Pros: May take advantage of array optimization techniques, such as caching array elements or using optimized array comparison algorithms.
	+ Cons: Can be slower than scalar comparisons (e.g., `a > b`) due to the overhead of comparing arrays.

**Libraries and Special Features**

The benchmark does not appear to use any external libraries. However, it's worth noting that some JavaScript engines may have special features or syntax optimizations for specific data types, such as:

* **BigInt**: A built-in JavaScript type for arbitrary-precision integers.
* **Symbol** comparisons: Some browsers may optimize symbol comparison using specialized algorithms.

Since there are no libraries or special features mentioned in the provided benchmark, we won't delve deeper into these topics.

**Other Alternatives**

To measure performance differences between JavaScript engines, you can also explore other benchmarks that test different aspects of JavaScript execution, such as:

* **Web Benchmarks**: Measure web page load times, parsing, and rendering.
* **DOM Manipulation**: Compare the performance of DOM element insertion, removal, and updates.
* **Regular Expressions**: Test the performance of regular expression matching and optimization.

These alternatives can help provide a more comprehensive understanding of JavaScript engine performance characteristics.

Related benchmarks:

string vs array comparison (version: 0)

Comparing performance of: string compare vs array includes

Created: 2 years ago by: Guest

Jump to the latest result

string compare

array includes

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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