Benchmark: parenthesis or not

Tests:

parenthesis
var j = "MSKU765112"; var s = 0; var c1 = j.charCodeAt(0)-55; var c2 = j.charCodeAt(1)-55; var c3 = j.charCodeAt(2)-55; var c4 = j.charCodeAt(3)-55; s+=(Math.floor(c1/10.2)+c1)*1; s+=(Math.floor(c2/10.2)+c2)*2; s+=(Math.floor(c3/10.2)+c3)*4; s+=(Math.floor(c4/10.2)+c4)*8; s+=j.charCodeAt(4)*16-768; s+=j.charCodeAt(5)*32-1536; s+=j.charCodeAt(6)*64-3072; s+=j.charCodeAt(7)*128-6144; s+=j.charCodeAt(8)*256-12288; s+=j.charCodeAt(9)*512-24576; return s;
without
var j = "MSKU765112"; var s = 0; var c = j.charCodeAt(0)-55; s+=(Math.floor(c/10.2)+c)*1; var c = j.charCodeAt(1)-55; s+=(Math.floor(c/10.2)+c)*2; var c = j.charCodeAt(2)-55; s+=(Math.floor(c/10.2)+c)*4; var c = j.charCodeAt(3)-55; s+=(Math.floor(c/10.2)+c)*8; s+=j.charCodeAt(4)*16-768; s+=j.charCodeAt(5)*32-1536; s+=j.charCodeAt(6)*64-3072; s+=j.charCodeAt(7)*128-6144; s+=j.charCodeAt(8)*256-12288; s+=j.charCodeAt(9)*512-24576; return s;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
parenthesis
without

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 is being tested, the options compared, pros and cons of each approach, and other considerations.

**Benchmark Definition**

The provided JSON represents a benchmark with two test cases: "parenthesis" and "without". The benchmark definition is empty, which means that the script preparation code and HTML preparation code are not specified. This allows users to write their own script to be executed in the benchmark.

**Test Cases**

There are two individual test cases:

1. **Without**: This test case uses a hardcoded value for the `c` variable, whereas in the "parenthesis" test case, the value is determined by subtracting 55 from the character code of each digit in the string `"MSKU765112"`.

**What is being tested**

The benchmark appears to be testing the performance difference between two approaches:

* Using a hardcoded value for a variable (`c` in this case)
* Determining the value of a variable based on the character code of a digit

In the "parenthesis" test case, the value of `c` is calculated by subtracting 55 from the character code of each digit in the string. This approach requires parsing the string and performing arithmetic operations.

**Options compared**

Two options are being compared:

1. **Hardcoded value**: Using a hardcoded value for the variable (`c`) directly.
2. **Calculated value**: Determining the value of `c` based on the character code of each digit in the string.

**Pros and Cons of each approach**

* **Hardcoded value**:
	+ Pros: faster execution, no parsing or arithmetic operations required.
	+ Cons: limited flexibility, dependent on the hardcoded value being correct.
* **Calculated value**:
	+ Pros: flexible, can handle any input string.
	+ Cons: slower execution, requires parsing and arithmetic operations.

**Library**

There is no explicit library mentioned in the provided code. However, based on the character code operations and string manipulation, it's likely that a built-in JavaScript function or a custom implementation is used.

**Special JS feature or syntax**

The benchmark uses the `charCodeAt()` method to access individual characters in the string. This is not specific to any particular JavaScript version or syntax, but rather a standard function available since ECMAScript 1.0.

**Other considerations**

* **Optimization**: The benchmark appears to be optimized for performance, as it only measures the execution time of a single operation.
* **Input validation**: There is no input validation in the provided code, which means that any invalid or malformed input will likely cause errors or unexpected behavior.
* **Comparison**: The benchmark compares two approaches, but does not provide any insight into why these approaches were chosen or how they relate to each other.

**Alternatives**

If you wanted to create a similar benchmark, you could consider the following alternatives:

1. Compare different string manipulation algorithms (e.g., using `substring()`, `indexOf()`, or regular expressions).
2. Test the performance of different data structures (e.g., arrays vs. objects vs. sets).
3. Measure the execution time of different programming languages or runtimes.
4. Create a benchmark that tests the performance of specific JavaScript features, such as async/await or Web Workers.

Related benchmarks:

parenthesis or not (version: 0)

Comparing performance of: parenthesis vs without

Created: 8 years ago by: Guest

Jump to the latest result

parenthesis

without

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):