Benchmark: destructuring vs creating

HTML Preparation code:

<script src=''></script>

Tests:

test1
const myObject = { value:"Hello World" } const {value} = myObject
test2
const myObject = { value:"Hello World" } const value2 = myObject.value

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test1
test2

Fastest: N/A

Slowest: N/A

Latest run results:

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

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I'll break down the benchmark and its components to explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. The "Name" field specifies the name of the benchmark, which is "destructuring vs creating". There's no description or script preparation code for this benchmark.

**Individual Test Cases**

There are two individual test cases:

1. **Test Case 1:**
```javascript
const myObject = {
    value: "Hello World"
}
const {value} = myObject
```
This test case is testing the performance of destructuring assignment (the syntax `const {value} = myObject`).

2. **Test Case 2:**
```javascript
const myObject = {
    value: "Hello World"
}
const value2 = myObject.value
```
This test case is comparing the performance of creating a variable and assigning it a value (`const value2 = myObject.value`) versus destructuring assignment.

**Comparison**

The benchmark is comparing two approaches:

1. **Destructuring Assignment**: This syntax allows you to extract values from an object in a concise way.
```javascript
const {value} = myObject;
```
Pros:

* More concise and expressive code
* Often faster due to reduced overhead

Cons:

* Limited control over the variable name (it's generated by the destructure expression)
* May not work well with complex objects or deeply nested properties

2. **Creating a Variable and Assigning**: This approach is more traditional, where you create a new variable and assign it the value.
```javascript
const value2 = myObject.value;
```
Pros:

* More control over variable name
* Works well with complex objects or deeply nested properties

Cons:

* Less concise code
* May be slower due to overhead of creating a new variable

**Library**

None of the test cases use any external libraries.

**Special JavaScript Features or Syntax**

No special features or syntax are being tested in these benchmark cases. They're focusing on the comparison between two basic approaches.

**Other Alternatives**

If you were considering alternatives, here are a few:

1. **Object Literal Creation**: You could also compare the performance of creating an object literal using bracket notation (`const myObject = { value: "Hello World" }`) versus destructuring assignment.
2. **Property Access**: Another option would be to test accessing properties using dot notation (`.value`), square brackets (`myObject['value']`), or other methods.

Keep in mind that these alternatives might not provide significant variations in performance, and MeasureThat.net's focus is on benchmarking specific syntaxes like destructuring assignment.

Related benchmarks:

destructuring vs creating (version: 0)

Comparing performance of: test1 vs test2

Created: 3 years ago by: Guest

Jump to the latest result

test1

test2

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):