Benchmark: Obj path vs variable fix

Script Preparation code:

const obj = {a:{b:{c:{d:{e:3,f:9}}}}}
const e = obj.a.b.c.d.e;
const f = obj.a.b.c.d.f;

Tests:

By path
const obj = {a:{b:{c:{d:{e:3,f:9}}}}} const x = obj.a.b.c.d.e+obj.a.b.c.d.f
By var
const obj = {a:{b:{c:{d:{e:3,f:9}}}}} const e = obj.a.b.c.d.e; const f = obj.a.b.c.d.f; const x = e+f

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
By path
By var

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

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

**Benchmark Definition:**

The benchmark defines two different approaches to accessing and manipulating data in JavaScript:

1. **Direct Access**: This approach uses direct variable names to access and manipulate data, as shown in the "Script Preparation Code":
```javascript
const obj = {a:{b:{c:{d:{e:3,f:9}}}}}
const e = obj.a.b.c.d.e;
const f = obj.a.b.c.d.f;
```
2. **Intermediate Variable**: This approach uses an intermediate variable to access and manipulate data, as shown in the "Script Preparation Code":
```javascript
const obj = {a:{b:{c:{d:{e:3,f:9}}}}}
const x = obj.a.b.c.d.e+obj.a.b.c.d.f;
```
**Options Compared:**

The benchmark compares the performance of two options:

1. **Direct Access**: Using direct variable names to access and manipulate data.
2. **Intermediate Variable**: Using an intermediate variable to access and manipulate data.

**Pros and Cons:**

* **Direct Access**: This approach is generally faster because it eliminates the overhead of creating a new variable and updating its value.
	+ Pros: Faster performance, simpler code.
	+ Cons: More prone to errors if not done carefully (e.g., accidentally reassigning `e` or `f`).
* **Intermediate Variable**: This approach can be slower than direct access because it creates an additional variable that needs to be created and updated.
	+ Pros: More readable code, less prone to errors (since you don't have to worry about reassigning variables).
	+ Cons: Slower performance.

**Library Used:**

There is no library used in this benchmark. The code only uses built-in JavaScript features.

**Special JS Feature/Syntax:**

There are no special JS features or syntax used in this benchmark.

**Other Considerations:**

* **Code Readability**: This benchmark prioritizes code readability over performance, which might be beneficial for developers who value maintainability.
* **Error Handling**: The benchmark does not include any error handling or validation, which could lead to unexpected behavior if the input data is invalid.

**Alternatives:**

Other alternatives to direct and intermediate variable approaches include:

1. **Object Destructuring**: Using destructuring assignment to assign values from an object into separate variables (e.g., `const { e, f } = obj.a.b.c.d;`).
2. **Array Access**: Using array access to access elements in a nested array (e.g., `obj.a.b.c.d[e];`).
3. **Closures**: Using closures to encapsulate data and functions that operate on that data.

Keep in mind that the choice of approach depends on the specific use case, performance requirements, and personal coding style.

Related benchmarks:

Obj path vs variable fix (version: 0)

accessing by intermediate variable vs direct

Comparing performance of: By path vs By var

Created: 3 years ago by: Guest

Jump to the latest result

By path

By var

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):