Benchmark: Getters vs single function

Script Preparation code:

function noDeps(change) {
}

var x = {
	get positive() {
  		return this.change >= 0;
	},
      
    get icon() {
		return this.positive ? 'up': 'down';
    },
          
    get color() {
		return this.positive ? 'green': 'red';
    },
  
  	noDeps: function() {
        if (this.change >= 0) {
        return {
          color: 'green',
          icon: 'up'
        }
      } else {
        return {
          color: 'red',
          icon: 'down'
        }
      }
    }
}

Tests:

object
x.change = 1; var color = x.color; var icon = x.icon;
function
var y = x.noDeps() var color = y.color; var icon = y.icon;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
object
function

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark that compares two approaches:

1. **Getters**: This approach uses getter methods (e.g., `get positive()`) to access properties of an object (`x`). The idea is to use getters instead of directly accessing the property names.
2. **Single function call**: This approach creates a single function (`noDeps`) that returns an object with specific properties (color and icon). This function is then called multiple times, which should be faster than using getter methods.

**Options Compared**

The benchmark compares two options:

* Using getters to access properties of an object
* Creating a single function call to get the desired properties

**Pros and Cons of Each Approach**

1. **Getters**
	* Pros:
		+ More readable code (e.g., `x.positive` instead of accessing `this.change >= 0`)
		+ Can be more efficient in certain situations, as getters can be optimized by JavaScript engines
	* Cons:
		+ Might lead to slower performance due to the overhead of getter methods
		+ More complex code, especially for deeply nested objects
2. **Single function call**
	* Pros:
		+ Can be faster due to reduced overhead and fewer function calls
		+ Easier to reason about the behavior of the code
	* Cons:
		+ Less readable code (e.g., `noDeps()` instead of accessing properties directly)
		+ Might lead to tighter coupling between functions

**Library/Functions Used**

In this benchmark, the following library/function is used:

* None, as it's a built-in JavaScript feature

**Special JS Features/Syntax**

There are no special JavaScript features or syntaxes used in this benchmark.

**Other Considerations**

When writing benchmarks like this one, consider the following factors:

1. **Relevance**: Ensure that the benchmark is relevant to your specific use case and target audience.
2. **Scope**: Limit the scope of the benchmark to a specific problem domain to avoid introducing unnecessary complexity.
3. **Variability**: Minimize variability in the test data and conditions to ensure accurate results.
4. **Instrumentation**: Carefully consider how you instrument your code for benchmarking, as incorrect instrumentation can lead to biased results.

**Alternatives**

If you're looking for alternative approaches to JavaScript microbenchmarking, consider:

1. **Benchmarking frameworks like Benchmark.js or js-benchmark**
2. **WebAssembly (WASM) benchmarks**, which can provide more accurate and consistent results
3. **Other benchmarking libraries**, such as Google's benchmark library

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.96 Safari/537.36

Browser/OS: Chrome 58 on Windows 7

View result in a separate tab

Test name	Executions per second
object	752401.7 Ops/sec
function	5200566.5 Ops/sec

Related benchmarks:

Getters vs single function (version: 6)

Comparing performance of: object vs function

Created: 7 years ago by: Registered User

Jump to the latest result

object

function

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):