Benchmark: testlegmtroster - MeasureThat.net

Tests:

one
function associativeArrayDateSort (direction, field) { return function (a, b) { a = new Date(a[ field ]).valueOf() b = new Date(b[ field ]).valueOf() let compare = ( a > b ) - ( a < b ) if (direction === 'DESC') { compare *= -1 } return compare } } let my_array = [ { field_1: 'aaa', field_2: 'bbb', date_field: new Date('2020-03-10 00:15:00') }, { field_1: 'ccc', field_2: 'ddd', date_field: new Date('2020-03-10 00:20:00') }, { field_1: 'eee', field_2: 'fff', date_field: new Date('2020-03-10 00:05:00') }, { field_1: 'ggg', field_2: 'hhh', date_field: new Date('2020-03-10 00:10:00') } ] my_array.sort(associativeArrayDateSort('DESC', 'date_field')) console.info(my_array)
two
function associativeArrayDateSort( direction, field ) { return function(a,b){ if ( new Date( a[ field ] ) === new Date( b[ field ] ) ) { return 0; } if(direction === "ASC"){ return new Date( a[ field ] ) > new Date( b[ field ] ) ? 1 : -1 } return new Date( a[ field ] ) > new Date( b[ field ] ) ? -1 : 1 } } let my_array = [ { field_1: 'aaa', field_2: 'bbb', date_field: new Date('2020-03-10 00:15:00') }, { field_1: 'ccc', field_2: 'ddd', date_field: new Date('2020-03-10 00:20:00') }, { field_1: 'eee', field_2: 'fff', date_field: new Date('2020-03-10 00:05:00') }, { field_1: 'ggg', field_2: 'hhh', date_field: new Date('2020-03-10 00:10:00') } ] my_array.sort( associativeArrayDateSort('DESC', 'created_at') )

Rendered benchmark preparation results:

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Previous results

Test case name	Result
one
two

Fastest: N/A

Slowest: N/A

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

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I'll explain the provided benchmark and its components in detail.

**Benchmark Overview**

The benchmark is designed to test the performance of JavaScript arrays sorting algorithms, specifically comparing three different approaches: using a custom sorting function with date fields, using the `===` operator for date comparison, and using the `<` and `>` operators for date comparison.

**Options Compared**

1. **Custom Sorting Function**: This approach uses a custom sorting function that takes two dates as input and returns an integer value indicating their order (0 if equal, 1 if first date is later, -1 if second date is later). The function converts the dates to a common format using `new Date()` and then compares them.
2. **`===` Operator**: This approach uses the `===` operator to compare two dates directly. If the comparison fails, it returns an error.
3. ** `<` and `>` Operators**: This approach uses the `<` and `>` operators to compare two dates. It first checks if the dates are equal using `===`, and then compares them based on their timestamp.

**Pros and Cons of Each Approach**

1. **Custom Sorting Function**:
	* Pros: Allows for a more flexible comparison logic, can be optimized for specific use cases.
	* Cons: Requires additional code to implement the custom function, may have performance overhead due to the extra calculation.
2. **`===` Operator**: Pros: Simple and efficient way to compare dates directly. Cons: May not work correctly if the date formats are different or if the dates are in a format that can't be parsed (e.g., `NaN`).
3. ** `<` and `>` Operators**: Pros: Fast and simple comparison logic. Cons: Assumes equal date formats, may return incorrect results for non-standard date formats.

**Library Used**

None of the provided benchmark definitions use any external libraries for sorting or date manipulation.

**Special JavaScript Features/Syntax**

The benchmark uses some advanced JavaScript features:

* The `sort()` method is used to sort the array.
* The custom sorting function uses arrow functions (not explicitly written, but implied by the syntax).
* The comparison logic in the custom sorting function and the `<` and `>` operator approach uses implicit type coercion.

**Alternatives**

For this specific benchmark, other alternatives could be:

* Using a library like Lodash or Moment.js for date manipulation and comparison.
* Implementing a different sorting algorithm, such as merge sort or quicksort.
* Testing other JavaScript arrays operations, such as insertion sort or bubble sort.

However, the current benchmark provides a good example of comparing three distinct approaches to sorting dates in a JavaScript array.

Related benchmarks:

testlegmtroster (version: 0)

Comparing performance of: one vs two

Created: 5 years ago by: Guest

Jump to the latest result

one

two

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):