Benchmark: JS Destruction vs Assign

Tests:

Case destruction
const myObj = { keyOne: 'hello', keyTwo: 'world' }; const { keyOne, keyTwo: secondKey } = myObj;
Case assing
const myObj = { keyOne: 'hello', keyTwo: 'world' }; const keyOne = myObj.keyOne; const secondKey = myObj.keyTwo;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Case destruction
Case assing

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 world of MeasureThat.net and explore what's being tested in this benchmark.

**Benchmark Definition**

The provided JSON represents a benchmark definition with no specific test case or script preparation code. This is likely because the benchmark is comparing two different approaches to destructuring objects in JavaScript.

**Test Cases**

There are only two individual test cases:

1. **Case destruction**: This test case uses the syntax `const { keyOne, keyTwo: secondKey } = myObj;`, where the object properties are assigned directly into new variables.
2. **Case assigning**: This test case uses the syntax `const myObj = { keyOne: 'hello', keyTwo: 'world' }; const keyOne = myObj.keyOne; const secondKey = myObj.keyTwo;`, which is a more traditional way of accessing object properties.

**Pros and Cons**

1. **Case destruction (destructuring)**:
	* Pros:
		+ More concise and expressive syntax.
		+ Can be more efficient, as it avoids the need for intermediate variables.
		+ Reduces the risk of typos or errors, as the variables are declared directly from the object.
	* Cons:
		+ May not be supported by older browsers or JavaScript engines.
		+ Can lead to issues if the object properties are optional or have default values.
2. **Case assigning**:
	* Pros:
		+ More widely supported across different browsers and JavaScript engines.
		+ Allows for more control over variable declarations and assignment order.
	* Cons:
		+ Less concise syntax, which can lead to code duplication or longer lines of code.

**Libraries and Features**

There are no specific libraries mentioned in the benchmark. However, it's worth noting that MeasureThat.net is designed to measure JavaScript performance and does not rely on any external libraries for its benchmarks.

**Special JS Features/Syntax**

This benchmark uses a relatively modern feature in JavaScript: object destructuring (introduced in ECMAScript 2015). Object destructuring allows you to extract properties from objects into new variables in a concise syntax. This feature is widely supported across modern browsers and JavaScript engines.

**Alternatives**

If you're interested in running similar benchmarks or want to explore other JavaScript performance metrics, you can use tools like:

1. **Benchmarking frameworks**: Such as Benchmark.js, jsperf, or Benchmark.
2. **Performance testing libraries**: Like WebPageTest or Lighthouse.
3. **JavaScript engines**: Which provide built-in benchmarking tools, such as V8 (Google's JavaScript engine) or SpiderMonkey (Mozilla's JavaScript engine).

Keep in mind that MeasureThat.net is a specialized tool designed for specific use cases, and these alternatives may not provide the exact same level of control or customization.

Related benchmarks:

JS Destruction vs Assign (version: 0)

Comparing performance of: Case destruction vs Case assing

Created: 3 years ago by: Guest

Jump to the latest result

Case destruction

Case assing

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):