Benchmark: Int compare - MeasureThat.net

Script Preparation code:

var strA = "1688805315905";
var strB = "1688805315906";

Tests:

noParse
var res = strB > strA;
~~
var res = ~~strB > ~~strA;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
noParse
~~

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

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Let's dive into the world of JavaScript microbenchmarks and explore what's being tested on this particular benchmark.

**Benchmark Overview**

The benchmark is designed to measure the performance of two different approaches for comparing numbers in JavaScript:

1. Direct comparison (`var res = strB > strA;`)
2. Integer approximation (`var ~~strB > ~~strA;`)

**Direct Comparison**

In this approach, two strings are compared directly using the `>` operator. This is a simple and straightforward way to compare two values.

Pros:

* Easy to understand and implement
* No additional processing or optimization needed

Cons:

* May not be efficient for large datasets or performance-critical applications
* Can lead to slower performance due to string comparison overhead

**Integer Approximation**

In this approach, the strings are converted to their integer approximations using bitwise operations (bitwise NOT `~`). This is a more optimized way of comparing numbers.

Pros:

* Often faster than direct comparison for numeric values
* Can be useful for performance-critical applications or large datasets

Cons:

* Requires careful handling of edge cases (e.g., NaN, Infinity)
* May not work as expected with non-numeric strings

**Library and Special Features**

There is no specific library used in this benchmark. However, the use of `~~` operator is a special feature in JavaScript that performs integer approximation.

The `~~` operator is equivalent to the bitwise NOT operator `~`, which flips the bits of the number. When applied to an integer value, it converts the number to its closest integer representation. This operator can be useful for performance-critical applications or when working with numeric values.

**Other Alternatives**

Other approaches for comparing numbers in JavaScript include:

1. Use a library like `BigInt` (ECMAScript 2020+) for arbitrary-precision arithmetic and comparison.
2. Implement a custom integer approximation algorithm, such as the "round-to-even" algorithm used in some performance-critical applications.
3. Use a just-in-time (JIT) compiler or a transpiler to optimize the comparison code.

**Benchmark Preparation Code**

The provided preparation code initializes two string variables `strA` and `strB` with values that will be compared. The code is designed to minimize any overhead from parsing or compiling the script, allowing for a more accurate measurement of the performance difference between the two approaches.

Overall, this benchmark provides a useful comparison of two common approaches for comparing numbers in JavaScript, highlighting the trade-offs between simplicity and performance.

Related benchmarks:

Int compare (version: 0)

Comparing performance of: noParse vs ~~

Created: 2 years ago by: Guest

Jump to the latest result

noParse

~~

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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