Benchmark: call with value vs call with object vs use dot

Script Preparation code:

object = {cd: 10, dd: 16, pp: 24, aa: 10 }

Tests:

pass values
function f(cd, dd, pp, aa) { return cd + dd + pp + aa } f(object.cd, object.dd, object.pp, object.aa)
pass object
function f({cd, dd, pp, aa}) { return cd + dd + pp + aa } f(object)
dot access
function f(o) { return o.cd + o.dd + o.pp + o.aa } f(object)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pass values
pass object
dot access

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.

**Overview of the Benchmark**

The provided JSON represents a JavaScript microbenchmark, where users can create and run benchmarks to compare the performance of different approaches. The benchmark measures the execution speed of three test cases:

1. Passing values to a function
2. Passing an object with properties as arguments to a function
3. Using dot access (i.e., accessing properties of an object using a dot notation) in a function

**Benchmark Definition**

The benchmark definition provides two scripts for each test case. The scripts are:

* **Script Preparation Code**: This code initializes the `object` variable with some values.
* **Html Preparation Code**: This code is empty and does not contribute to the benchmark performance.

For the three test cases, the scripts are:
```javascript
// Test Case 1: Pass values
function f(cd, dd, pp, aa) {
  return cd + dd + pp + aa;
}

f(object.cd, object.dd, object.pp, object.aa);

// Test Case 2: Pass object
function f({cd, dd, pp, aa}) {
  return cd + dd + pp + aa;
}

f(object);

// Test Case 3: Dot access
function f(o) {
  return o.cd + o.dd + o.pp + o.aa;
}

f(object);
```
**Options Compared**

The benchmark compares three options:

1. **Passing values as separate arguments**: This approach passes the `object` properties as individual arguments to the function.
2. **Passing an object with properties as a single argument**: This approach passes the entire `object` as a single argument to the function, and then accesses its properties inside the function.
3. **Using dot access**: This approach directly accesses the properties of the `object` using a dot notation.

**Pros and Cons of Each Approach**

* **Passing values as separate arguments**:
	+ Pros: Easier to read and understand, more explicit usage of individual properties.
	+ Cons: May lead to slower performance due to function call overhead.
* **Passing an object with properties as a single argument**:
	+ Pros: Can be faster since it reduces the number of function calls, but may require more complex logic inside the function.
	+ Cons: Less readable and maintainable, especially for developers unfamiliar with this approach.
* **Using dot access**:
	+ Pros: Fastest since it directly accesses properties without any function call overhead, but less readable and may lead to typos or unexpected behavior.
	+ Cons: May be harder to understand and debug, especially for complex object hierarchies.

**Library Usage**

The benchmark does not use any external libraries. However, the `object` variable is used to represent a JavaScript object, which is a built-in data structure in JavaScript.

**Special JS Features or Syntax**

None of the test cases utilize special JavaScript features or syntax that would require additional explanation.

**Other Alternatives**

If you need alternative approaches for similar benchmarks, you can consider:

* Using different function call patterns (e.g., using `apply()` or `call()`) to pass arguments.
* Comparing performance using other microbenchmarks or benchmarking frameworks (e.g., V8 Benchmark Suite).
* Evaluating the impact of specific JavaScript features on performance (e.g., using `let` vs. `var`, arrow functions, etc.).

Keep in mind that the choice of approach and alternatives depends on your specific use case, target audience, and performance requirements.

Related benchmarks:

call with value vs call with object vs use dot (version: 0)

Comparing performance of: pass values vs pass object vs dot access

Created: 3 years ago by: Guest

Jump to the latest result

pass values

pass object

dot access

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):