Benchmark: Three Digit Validator

HTML Preparation code:

var string = "abe123";

Script Preparation code:

var string = "abe123";

Tests:

Regex
let isLastNameValid = false; const THREE_DIGIT_REGEXP = /\d{3,}/; isLastNameValid = THREE_DIGIT_REGEXP.test(string);
Loop
let isLastNameValid = false; let digits = 0; for(let i = 0; i < string.length; i++) { !isNaN(string.charAt(i)) && digits++; } digits >= 3 ? isLastNameValid = true : isLastNameValid = false;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Regex
Loop

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):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared, and analyzed.

**Benchmark Definition**

The benchmark definition is a JSON object that provides metadata about the test case. In this case, it includes:

* `Name`: "Three Digit Validator"
* `Description`: null
* `Script Preparation Code`:
```javascript
var string = "abe123";
```
This code sets up a variable `string` with the value `"abe123"`, which is used as input for the benchmark.

**Html Preparation Code**

The `Html Preparation Code` is identical to the `Script Preparation Code`, suggesting that it's not actually being used in the benchmark. This might be an oversight or a placeholder.

**Test Cases**

There are two test cases:

1. **Regex**
```javascript
let isLastNameValid = false;
const THREE_DIGIT_REGEXP = /\\d{3,}/;
isLastNameValid = THREE_DIGIT_REGEXP.test(string);
```
This code uses a regular expression (`/\\d{3,}/`) to check if the input `string` contains at least three digits. The variable `isLastNameValid` is set to `true` if the string matches the pattern.

2. **Loop**
```javascript
let isLastNameValid = false;
let digits = 0;
for(let i = 0; i < string.length; i++) {
    !isNaN(string.charAt(i)) && digits++;
}
digits >= 3 ? isLastNameValid = true : isLastNameValid = false;
```
This code uses a simple loop to iterate through the characters of the input `string`. It increments a counter `digits` whenever it encounters a non-null character. Finally, it sets `isLastNameValid` to `true` if the total number of digits is 3 or more.

**Comparison**

The two test cases are compared in terms of performance, measured by the number of executions per second (`ExecutionsPerSecond`). The results indicate that:

* The `Regex` approach has a significantly higher execution rate (10843547.0 vs 622650.125) than the `Loop` approach.

**Pros and Cons**

1. **Regex**:
	* Pros: Fast, concise, and efficient.
	* Cons: May not work correctly for all input formats or edge cases.
2. **Loop**:
	* Pros: Can handle more complex input formats or edge cases.
	* Cons: Slower and less efficient.

**Library**

None of the test cases use a specific library, but they do utilize built-in JavaScript features like regular expressions (`/\\d{3,}/`) and string methods (`test()`, `charAt()`).

**Special JS Features/Syntax**

There are no special JS features or syntax used in either test case.

**Alternatives**

If you were to rewrite this benchmark with alternative approaches, some possibilities could be:

* Using a different regular expression pattern or optimization technique.
* Implementing the loop logic using a more efficient data structure, such as an array or trie.
* Utilizing parallel processing or multi-threading to improve execution rate.
* Comparing the performance of different JavaScript engines or implementations (e.g., V8, SpiderMonkey).

Keep in mind that these alternatives would require significant changes to the benchmark code and might not necessarily lead to improved performance.

Related benchmarks:

Three Digit Validator (version: 0)

Comparing performance of: Regex vs Loop

Created: 4 years ago by: Guest

Jump to the latest result

Regex

Loop

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):