Benchmark: Destructuring function argument

Tests:

normal args
function foo(a,b,c){ return a + b + c; } console.log(foo(1,2,3));
object args
function foo({a,b,c}){ return a + b + c; } console.log(foo({a: 1,b: 2,c: 3}));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
normal args
object args

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 21 days ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Linux

View result in a separate tab

Test name	Executions per second
normal args	103315.0 Ops/sec
object args	106040.6 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated 21 days ago):

LLMs can make mistakes. Check important info.

The benchmark defined in the provided JSON evaluates the performance of two different ways to pass arguments to a JavaScript function: using standard positional arguments and using destructured properties from an object. This kind of performance measurement is useful for identifying potential efficiency trade-offs between different JavaScript coding styles.

### Options Compared

1. **Normal Arguments (Positional Parameters)**
   - **Test Case**: 
     ```javascript
     function foo(a, b, c) {
       return a + b + c;
     }
     console.log(foo(1, 2, 3));
     ```
   - **Description**: The `foo` function takes three separate arguments (a, b, and c), which are accessed directly within the function.
   - **Pros**:
     - Simplicity: Easy to understand and use, especially for those familiar with traditional function calls.
     - Performance: This approach may be faster in some environments as it requires no extra overhead for property access.
   - **Cons**:
     - Scalability: As the number of parameters increases, the function signature can become cumbersome, making it difficult to maintain.
     - Parameter Order: Users must remember the order of parameters when calling the function, which can lead to errors.

2. **Object Arguments (Destructuring)**
   - **Test Case**:
     ```javascript
     function foo({ a, b, c }) {
       return a + b + c;
     }
     console.log(foo({ a: 1, b: 2, c: 3 }));
     ```
   - **Description**: In this version, the `foo` function takes a single argument — an object containing properties `a`, `b`, and `c`. The properties are destructured directly in the function parameters.
   - **Pros**:
     - Readability: More readable when dealing with multiple parameters, as named properties provide clarity in function calls.
     - Flexibility: Additional properties can be added to the object without changing the function signature, which aids in maintainability.
   - **Cons**:
     - Performance Overhead: Destructuring involves additional steps (property access), which may incur a slight performance cost compared to direct parameter access.
     - Complexity: Can be confusing for developers unfamiliar with destructuring syntax.

### Benchmark Results

The benchmark results show that the function with object destructuring (`object args`) executed approximately 106,040 times per second, while the normal arguments version (`normal args`) executed around 103,315 times per second. Despite the performance overhead associated with destructuring, the performance difference is relatively minor in this case.

### Other Considerations

- **Use Cases**: The choice between these two styles often depends on the specific use cases. For functions with a relatively small number of parameters, normal arguments might be preferred for their simplicity. In contrast, if a function is likely to require multiple parameters or needs to be extensible, destructuring can be advantageous.
- **Default Parameters & Optional Arguments**: When using destructuring, you can easily specify default values for parameters or make properties optional. This flexibility can improve the usability of a function.
  
### Alternatives

In addition to these two approaches, other alternatives could be considered:

- **Using Classes**: For scenarios involving shared behavior or data, using a class with properties can encapsulate data, which helps maintain clear structure and state.
- **Array Parameters**: An array could be passed to the function, where each position corresponds to a specific value. However, this would still face the same issues as positional args with regard to clarity and readability.

Choosing the best option in real-world applications depends on factors such as performance requirements, code maintainability, and developer familiarity with JavaScript features.

Related benchmarks:

Destructuring function argument (version: 1)

destructure an object into a function.

Comparing performance of: normal args vs object args

Created: 21 days ago by: Guest

Jump to the latest result

normal args

object args

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated 21 days ago):