Benchmark: Math.pow versus multiply, with or without semicolons.

Tests:

pow, w/ semicolon
var x = Math.pow(54,2);
pow, w/o semicolon
var x = Math.pow(54,2)
mult, w/ semicolon
var a = 54 * 54;
mult, w/o semicolon
var b = 54 * 54

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow, w/ semicolon
pow, w/o semicolon
mult, w/ semicolon
mult, w/o semicolon

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36

Browser/OS: Chrome 88 on Windows

View result in a separate tab

Test name	Executions per second
pow, w/ semicolon	5140766.5 Ops/sec
pow, w/o semicolon	5135698.5 Ops/sec
mult, w/ semicolon	1186282240.0 Ops/sec
mult, w/o semicolon	1185336576.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and explain what's being tested.

**Benchmark Definition**
The benchmark definition is a JSON object that outlines the purpose of the test:
```json
{
  "Name": "Math.pow versus multiply, with or without semicolons.",
  "Description": "Difference between Math.pow and generic multiplication. Also semicolon vs no semicolon."
}
```
In essence, this benchmark compares two methods of exponentiation:

1. `Math.pow(x, y)`: a built-in function in JavaScript for calculating the power of x to the y.
2. Generic multiplication: multiplying x by itself y times (e.g., 54 * 54).

Additionally, the benchmark tests the effect of using semicolons at the end of each statement.

**Individual Test Cases**
The test cases are defined as an array of objects:
```json
[
  {
    "Benchmark Definition": "var x = Math.pow(54,2);",
    "Test Name": "pow, w/ semicolon"
  },
  {
    "Benchmark Definition": "var x = Math.pow(54,2)",
    "Test Name": "pow, w/o semicolon"
  },
  {
    "Benchmark Definition": "var a = 54 * 54;",
    "Test Name": "mult, w/ semicolon"
  },
  {
    "Benchmark Definition": "var b = 54 * 54",
    "Test Name": "mult, w/o semicolon"
  }
]
```
Each test case has two main parts:

1. A `Benchmark Definition`: this is a JavaScript statement that defines the calculation to be performed.
2. A `Test Name`: a descriptive name for the test case.

**Comparison of Options**
The benchmark compares four options:

1. **`Math.pow(54, 2)`**: uses the built-in `Math.pow()` function with semicolon at the end.
2. **`var x = Math.pow(54, 2);`**: uses the same function but includes a semicolon after it (not part of the calculation).
3. **`54 * 54;`**: generic multiplication without using any built-in functions or variables.
4. **`var b = 54 * 54`**: generic multiplication with a declared variable.

**Pros and Cons**

* **`Math.pow()` vs Generic Multiplication**:
	+ `Math.pow()` is generally faster, as it's a specialized function optimized for performance.
	+ Generic multiplication can be slower due to the overhead of repeated multiplications.
* **Semicolon usage**:
	+ Using semicolons at the end of statements (option 2) may not affect the calculation itself but could impact code formatting and readability.
	+ Not using semicolons (options 1, 3, and 4) can lead to implicit scoping issues in certain situations.

**Library: `Math`**
The `Math` library is a built-in JavaScript library that provides various mathematical functions, including `pow()`. This library is widely used and optimized for performance.

**Special JS Features/Syntax**
None of the provided test cases explicitly use any special JavaScript features or syntax (e.g., async/await, arrow functions, classes). If they did, I wouldn't mention it here.

**Other Alternatives**

* **Alternative exponentsiation libraries**: there are other libraries available that provide alternative exponentiation methods, such as `exponentiale` or `fast-expo`. These might be used in more complex applications.
* **Compiler-based benchmarks**: some benchmarks use compiler-based approaches to analyze the performance of different languages and implementations.

Related benchmarks:

Math.pow versus multiply, with or without semicolons. (version: 0)

Difference between Math.pow and generic multiplication. Also semicolon vs no semicolon.

Comparing performance of: pow, w/ semicolon vs pow, w/o semicolon vs mult, w/ semicolon vs mult, w/o semicolon

Created: 3 years ago by: Guest

Jump to the latest result

pow, w/ semicolon

pow, w/o semicolon

mult, w/ semicolon

mult, w/o semicolon

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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