Benchmark: Three Digit Validator 3

HTML Preparation code:

var string = "jonathon123";

Script Preparation code:

var string = "jonathon123";

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++; } isLastNameValid = digits >= 3;

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

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition, test cases, and latest benchmark result to help understand what's being tested.

**Benchmark Definition**

The benchmark definition provides information about the test case:

*   **Name**: "Three Digit Validator 3"
*   **Description**: None
*   **Script Preparation Code**: Sets a variable `string` with the value `"jonathon123"`.
*   **Html Preparation Code**: Same as Script Preparation Code. This suggests that the HTML preparation code is not actually being used in the benchmark.

**Individual Test Cases**

There are two test cases:

1.  **Regex**:
    *   **Benchmark Definition**: Uses a regular expression (`THREE_DIGIT_REGEXP`) to check if the string has three or more digits.
    *   **Test Name**: "Regex"
2.  **Loop**:
    *   **Benchmark Definition**: Iterates over each character in the string, checks if it's not a non-digit character (`!isNaN(string.charAt(i))`), and increments a counter `digits`. Then, it checks if the number of digits is three or more.
    *   **Test Name**: "Loop"

**Pros and Cons of Different Approaches**

1.  **Regex (ThreeDigitValidator)**:
    *   **Pros**: Efficient for checking if a string has three or more digits, as regular expressions can be optimized using trie data structures or other techniques.
    *   **Cons**: May have performance issues with very large strings due to the overhead of creating and compiling regular expressions. Also, it might not work well for non-ASCII characters that may contain digits in different forms (e.g., Arabic numerals).

2.  **Loop**:
    *   **Pros**: Can handle any character set, including non-ASCII characters with digits. It's also relatively straightforward to implement.
    *   **Cons**: May be slower than the regex approach due to the overhead of iterating over each character in the string and the potential for more branches in the loop.

**Library: THREE_DIGIT_REGEXP**

THREE_DIGIT_REGEXP is a regular expression used in the Regex test case. Its purpose is to match three or more digits (`\\d{3,}`). This regex can be compiled into an engine-optimized pattern, making it faster for repeated use cases like this benchmark.

**Special JS Feature: Arrow Functions**

Both test cases utilize arrow functions (e.g., `let isLastNameValid = false; const THREE_DIGIT_REGEXP = /\\d{3,}/;`). This syntax was introduced in ECMAScript 2015 and provides a concise way to define small, single-expression functions.

**Other Alternatives**

Some other approaches could be used for this benchmark:

*   **Finite State Machine (FSM)**: Instead of using regex or loops, you could create an FSM that transitions between states based on the input characters. This approach would have its own set of benefits and drawbacks.
*   **Array-based Approach**: You can use an array to store the digits from the string and then check if it has three or more elements. However, this approach is more verbose than using loops or regex.

In conclusion, both test cases are efficient for their respective purposes. The choice between them depends on your specific requirements and constraints.

Related benchmarks:

Three Digit Validator 3 (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):