Benchmark: Pojo vs functions

Tests:

pojo
var x = {a:0,b:1,c:{a:"aaa",b:123},d:[0,1,2,3,"4"]}
function
var y = () => { var x = {a:0,b:1,c:{a:"aaa",b:123},d:[0,1,2,3,"4"]} }
function returning pojo
var y = () => { return {a:0,b:1,c:{a:"aaa",b:123},d:[0,1,2,3,"4"]} }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pojo
function
function returning pojo

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.

Let's dive into the explanation of the provided benchmark.

**Overview**

The benchmark compares three approaches to create and return an object in JavaScript:

1. **Pojo (Plain Old JavaScript Object)**: Creating an object using the `var` keyword and assigning values directly to its properties.
2. **Function returning Pojo**: Defining a function that returns an object using the same syntax as above.
3. **Function**: Defining a function without explicitly creating an object.

**Options compared**

The benchmark tests these three approaches in terms of their performance, specifically:

* Execution time
* Number of executions per second

**Pros and Cons of each approach:**

1. **Pojo**:
	* Pros: Simple, straightforward syntax; well-supported by most browsers.
	* Cons: May lead to slower execution times due to the overhead of property lookups and assignments.
2. **Function returning Pojo**:
	* Pros: Combines the benefits of functions (e.g., reusability) with object creation.
	* Cons: Introduces additional syntax complexity, which might affect performance in some cases.
3. **Function**:
	* Pros: Can be more concise and expressive than other approaches, as it allows for early returns and conditional statements.
	* Cons: May lead to slower execution times due to the overhead of function calls and lookups.

**Library usage**

There is no explicit library used in this benchmark. However, JavaScript engines like V8 (used by Chrome) have their own optimizations and features that might affect performance.

**Special JS feature or syntax**

This benchmark doesn't use any special JavaScript features or syntax beyond the standard language. If you're interested in exploring other advanced features, I can provide explanations for popular ones, such as async/await, Promises, or destructuring.

**Alternative approaches**

If you'd like to explore alternative approaches, here are a few examples:

* **Object literal**: Creating objects using the syntax `{ property: value }`.
* **Constructor functions**: Defining constructors using `function Constructor(name) { ... }` and calling them with an object as an argument.
* **Classes**: Defining classes using the syntax `class ClassName { ... }`.

Keep in mind that these alternatives might not be represented in this specific benchmark, but they can provide interesting variations on the approaches tested here.

Related benchmarks:

Pojo vs functions (version: 0)

Comparing performance of: pojo vs function vs function returning pojo

Created: 9 years ago by: Guest

Jump to the latest result

pojo

function

function returning pojo

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):