Benchmark: Function or if function

Tests:

If before function
const normalize = (v) => { return '0x' + v } let color = '0xffffffff' if(!color.startsWith('0x')) { color = normalize(color) }
function call
const normalize = (v) => { if(v.startsWith('0x')) { return v } else { return '0x' + v } } let color1 = '0xffffffff' color1 = normalize(color1)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
If before function
function call

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15

Browser/OS: Safari 15 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
If before function	61432980.0 Ops/sec
function call	50760796.0 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 JavaScript microbenchmarks.

**Benchmark Overview**

MeasureThat.net allows users to create and run JavaScript benchmarks, comparing different approaches to optimize their code. In this case, we have two individual test cases: "If before function" and "function call".

**Test Case 1: "If before function"**

The benchmark definition for this test case is as follows:
```javascript
const normalize = (v) => {
  return '0x' + v;
}

let color = '0xffffffff'

if (!color.startsWith('0x')) {
  color = normalize(color)
}
```
This code defines a function `normalize` that takes a string `v` and returns the same string prefixed with `'0x'`. The test case then creates a variable `color` initialized with the string `'0x' + 'ffffff'`. The benchmark is designed to measure how many times the condition `!color.startsWith('0x')` evaluates to `true`, which would cause the function call to execute.

**Test Case 2: "function call"**

The benchmark definition for this test case is as follows:
```javascript
const normalize = (v) => {
  if (v.startsWith('0x')) {
    return v;
  } else {
    return '0x' + v;
  }
}

let color1 = '0xffffffff'

color1 = normalize(color1)
```
This code defines the same `normalize` function as before, but with a slight twist. The test case creates two variables: `color1` and another unused variable ( likely added to fill the space). This is because MeasureThat.net expects a more complex benchmark definition which usually includes multiple functions or more complex logic.

**Options Compared**

The two test cases compare two different approaches:

1. "If before function": The condition `!color.startsWith('0x')` evaluates to `true`, causing the function call to execute.
2. "function call": The function is called directly, regardless of the condition.

**Pros and Cons**

* "If before function":
	+ Pros: Can potentially reduce function calls, which can lead to performance improvements.
	+ Cons: May introduce unnecessary overhead due to the conditional evaluation.
* "function call":
	+ Pros: Directly tests the performance of the function itself, without any potential overhead from conditionals.
	+ Cons: May result in more function calls than necessary, potentially leading to increased overhead.

**Library and Special JS Features**

There are no notable libraries or special JS features used in these benchmark definitions. The code is relatively simple and focuses on demonstrating the difference between two approachess.

**Other Considerations**

* MeasureThat.net also considers other factors when running benchmarks, such as browser version, device platform, operating system, and executions per second.
* The `RawUAString` field in the latest benchmark result provides additional information about the browser being tested.

**Alternatives**

If you want to create a similar benchmark or experiment with different approaches, here are some alternatives:

1. Browser benchmarking tools like Speedometer 2 or HTML5 Benchmark.
2. Online JavaScript compilers like CodeSandbox or Repl.it.
3. Local development environments like Node.js or a custom web server.

Keep in mind that the specific approach and tools used may vary depending on your goals, experience level, and target audience.

Related benchmarks:

Function or if function (version: 0)

Comparing performance of: If before function vs function call

Created: 2 years ago by: Guest

Jump to the latest result

If before function

function call

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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