Benchmark: summaaaa - MeasureThat.net

HTML Preparation code:


<div id=''></div>

Tests:

spread
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = { ...firstObject, ...secondObject };
assign
const firstObject = { sampleData: 'Hello world' } const secondObject = { moreData: 'foo bar' } const finalObject = Object.assign(firstObject, secondObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
spread
assign

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.

I'd be happy to explain the benchmark and its options.

**Benchmark Overview**

The provided benchmark is designed to compare two approaches for merging objects: using the spread operator (`...`) and `Object.assign()`. The test case uses JavaScript, which allows developers to create objects with dynamic properties and values.

**Options Compared**

Two main options are compared:

1. **Spread Operator (ES6+)**: This approach uses the spread operator (`...`) to merge two objects into a new object. It's a concise way to create a new object by copying all properties from one or more source objects.
2. **Object.assign()**: This is an older method for merging objects, introduced in ECMAScript 5 (ES5). It creates a new object and copies all enumerable own properties from the specified source objects.

**Pros and Cons**

* **Spread Operator:**
	+ Pros:
		- More concise and readable code
		- Works well with modern JavaScript environments
		- Can be used to merge objects in a single line of code
	+ Cons:
		- May not work as expected if the source objects have non-enumerable properties or methods
		- Not supported in older browsers or environments that don't support ES6+
* **Object.assign():**
	+ Pros:
		- Works well with older JavaScript environments and browsers
		- Supports merging of non-enumerable properties and methods
	+ Cons:
		- Less concise and less readable than the spread operator
		- May require additional code to handle errors or edge cases

**Library Usage**

There is no explicit library usage in this benchmark. However, the `Object.assign()` method is part of the JavaScript standard library.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax used in this benchmark. The examples use only standard JavaScript syntax and features available since ES5.

**Other Alternatives**

If you're looking for alternative approaches to merging objects, consider:

1. **Lodash.merge()**: A popular utility library that provides a robust and safe way to merge objects.
2. **Underscore.js._merge()**: Another widely used utility library that offers various ways to merge objects.
3. **Merge functions with custom logic**: You can also write your own merge function with custom logic to handle specific edge cases or requirements.

Keep in mind that these alternatives might add complexity and overhead compared to the built-in `Object.assign()` method or the concise spread operator syntax.

Related benchmarks:

summaaaa (version: 0)

summa

Comparing performance of: spread vs assign

Created: 3 years ago by: Registered User

Jump to the latest result

spread

assign

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):