Benchmark: some vs while - MeasureThat.net

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push(Math.floor(Math.random() * 1000));
  withoutZero.push(Math.floor(Math.random() * 1000) + 1)
}
var numToSearch = Math.round(Math.random());

Tests:

some
var tempResult = !!numToSearch ? hasZero.some(v => v === 0) : withoutZero.some(v => v === 0);
while
let tempResult = false; let i = 0; while (tempResult == false && hasZero[i] !== undefined) { if (hasZero[i] === 0) { tempResult = true; } i++; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
some
while

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
some	3399577.0 Ops/sec
while	546560.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of MeasureThat.net and explore what's being tested in this benchmark.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark, which consists of two test cases: `some` and `while`. The benchmark definition includes two arrays, `hasZero` and `withoutZero`, which are populated with random integers between 0 and 1000. A random number, `numToSearch`, is generated, and the goal is to determine whether it exists in either array.

**Options Compared**

The two test cases differ in their approach:

1. **some (Array.prototype.some())**: This method checks if at least one element of an array satisfies a provided condition. In this case, it's used to check if `numToSearch` exists in the `hasZero` or `withoutZero` arrays.
2. **while (Loop-based)**: The second test case uses a traditional while loop to iterate through the elements of the `hasZero` or `withoutZero` arrays and checks if `numToSearch` matches any of them.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

**some (Array.prototype.some())**

Pros:

* Concise and expressive code
* Faster execution, as it uses optimized array iteration

Cons:

* May not be as intuitive for developers without experience with this method

**while (Loop-based)**

Pros:

* Intuitive and easy to understand for developers familiar with traditional loops
* Can be more debuggable, as the loop variables are explicitly declared

Cons:

* Slower execution, due to the overhead of explicit loop management
* More code is required to achieve the same result

**Other Considerations**

When writing performance-critical code, it's essential to consider factors like cache locality, branch prediction, and the overall architecture of the system. In this case, the `some` method is likely optimized for performance by the JavaScript engine.

**Library/Library Functionality**

In this benchmark, no libraries are explicitly mentioned. However, the use of `Array.prototype.some()` suggests that the benchmark is taking advantage of a built-in JavaScript feature, which is part of the ECMAScript standard.

**Special JS Feature/Syntax (None)**

There are no special features or syntax used in these test cases.

**Alternatives**

If you're looking to write similar performance benchmarks for other JavaScript methods or algorithms, here are some alternatives:

* For array operations:
	+ `Array.prototype.every()`
	+ `Array.prototype.findIndex()`
	+ `Array.prototype.includes()`
* For loop-based iterations:
	+ Using a traditional `for` loop with an index variable
	+ Utilizing the `while` statement with explicit loop management

Keep in mind that performance benchmarks like MeasureThat.net are essential for evaluating and comparing different coding approaches, but they should be used as a starting point for further investigation and optimization.

Related benchmarks:

some vs while (version: 0)

Comparing performance of: some vs while

Created: 3 years ago by: Guest

Jump to the latest result

some

while

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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