Benchmark: HGOT-158 spread test 3

Script Preparation code:

var columns = [
  {
    field: 'name',
    label: 'Property Name',
    size: 4,
    isSort: null,
    isSortAsc: null
  },
  {
    field: 'propertyCode',
    label: 'Hapi Property Code',
    size: 4,
    isSort: null,
    isSortAsc: null
  },
  {
    field: 'roomCount',
    label: 'Room Count',
    size: 4,
    isSort: null,
    isSortAsc: null
  }
];
var sortParam = 'name';
var SORT = {
	ASC: 'asc'
};
var sortDirection = 'asc';

Tests:

Using spread + map
// Using spread + map columns = columns.map(col => ({ ...col, isSort: col.field === sortParam, isSortAsc: sortDirection === SORT.ASC }));
Using assign + map
// Using assign + map columns = columns.map(col => { col.isSort = col.field === sortParam; col.isSortAsc = sortDirection === SORT.ASC; return col; });
Using assign + forEach
// Using assign + forEach columns.forEach(col => { col.isSort = col.field === sortParam; col.isSortAsc = sortDirection === SORT.ASC; });
Using assign + forEach + const
const isSortAsc = sortDirection === SORT.ASC; columns.forEach(col => { col.isSort = col.field === sortParam; col.isSortAsc = isSortAsc; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Using spread + map
Using assign + map
Using assign + forEach
Using assign + forEach + const

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.

I'll break down the provided JSON and explain what's being tested, compared options, pros and cons of each approach, and other considerations.

**Benchmark Definition**

The benchmark is testing the performance of three different methods to update an array of objects in JavaScript:

1. Using spread (`...`): Creates a new object by spreading an existing object.
2. Using assignment (`=`): Assigns values directly to an object's properties.
3. Using `forEach` with a callback function: Iterates over an array and applies a function to each element.

The benchmark also tests two variations of the methods:

* Using spread + map
* Using assign + map (and its variants: assign + forEach, and assign + forEach + const)

**Test Case Explanations**

Here's a brief explanation of each test case:

1. **Using spread + map**: Spreads the existing object (`col`) into a new object, and then uses `map` to create a new array with updated objects.
2. **Using assign + map**: Assigns values directly to an object's properties using assignment (`=`), and then uses `map` to update the array of objects.
3. **Using assign + forEach**: Directly assigns values to an object's properties using assignment (`=`) within a `forEach` loop.
4. **Using assign + forEach + const**: The same as above, but with an additional variable `isSortAsc` defined outside the `forEach` loop.

**Pros and Cons of Each Approach**

1. **Using spread + map**:
	* Pros: Creates a new object and array, which can be more efficient for large datasets.
	* Cons: May create unnecessary objects in memory.
2. **Using assign + map**:
	* Pros: Directly updates the original array without creating unnecessary objects.
	* Cons: Uses `map`, which may incur performance overhead due to function calls.
3. **Using assign + forEach**:
	* Pros: Simple and straightforward, with no function call overhead.
	* Cons: May be slower than using `map` or spread, as it relies on a loop.

**Library: Lodash**

In the benchmark definition, there is no explicit mention of any libraries being used. However, the use of `map`, `forEach`, and spread operators suggests that the test case may rely on built-in JavaScript functionality, which is not a library per se.

**Special JS Feature/Syntax**

There are no specific JavaScript features or syntax mentioned in this benchmark. The code only uses standard JavaScript constructs like arrays, objects, loops, and function calls.

**Other Alternatives**

For this type of performance test, other alternatives could include:

* Using a testing framework like Jest or Mocha to write and run tests.
* Utilizing a benchmarking library like Benchmark.js or micro-benchmarking tools like MeasureThat's own API (as used in the provided code).
* Writing native code using languages like C++ or Rust to compare performance with JavaScript.

Keep in mind that this is just one example of how you might approach a performance test. The specific options and approaches will depend on the requirements and goals of your benchmark.

Related benchmarks:

HGOT-158 spread test 3 (version: 0)

Comparing performance of: Using spread + map vs Using assign + map vs Using assign + forEach vs Using assign + forEach + const

Created: 3 years ago by: Registered User

Jump to the latest result

Using spread + map

Using assign + map

Using assign + forEach

Using assign + forEach + const

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):