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Test HOY
(version: 0)
Test
Comparing performance of:
Concat vs Spread
Created:
3 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var data=[{"DayName":"Monday","IsException":false,"StartTime":"2023-01-04T10:51:22Z","EndTime":"2023-01-04T11:21:22Z","VehicleId":"baa1d223-6604-47ad-8a38-decdf1f8b07b","VehicleName":"Vehicle 1","Round":1,"PickupInfo":[{"BusinessUnitId":"92e2ad02-60a6-11ed-977e-066a5dfdcb56","BusinessUnitName":"Imam Abdul Azis","AddressId":"8e08dfc9-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address Pick 1","CountryId":3,"PostalCode":2423434,"AddressLine1":"Line 1","AddressLine2":"Line 2","Phone":2147483647,"Notes":"NOTED IMUN","SequenceNo":1}],"SalesInfo":[{"AddressId":"a26ecc1c-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address sales 1 ID","CountryId":2,"PostalCode":2324343,"AddressLine1":"Line 1","AddressLine2":"Line 2","Phone":2147483647,"StartTime":"2023-01-04T10:51:22Z","EndTime":"2023-01-04T11:21:22Z","SequenceNo":1}]},{"DayName":"Tuesday","IsException":false,"StartTime":"2023-01-04T10:51:51Z","EndTime":"2023-01-04T11:21:51Z","VehicleId":"baa1d223-6604-47ad-8a38-decdf1f8b07b","VehicleName":"Vehicle 1","Round":1,"PickupInfo":[{"BusinessUnitId":"92e2ad02-60a6-11ed-977e-066a5dfdcb56","BusinessUnitName":"Imam Abdul Azis","AddressId":"8e08dfc9-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address Pick 1","CountryId":3,"PostalCode":2423434,"AddressLine1":"Line 1","AddressLine2":"Line 2","Phone":2147483647,"Notes":"NOTED SELASA","SequenceNo":1}],"SalesInfo":[{"AddressId":"b1e492af-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address Line 2 JP","CountryId":3,"PostalCode":222222,"AddressLine1":"Line 1","AddressLine2":"","Phone":2147483647,"StartTime":"2023-01-04T10:51:51Z","EndTime":"2023-01-04T11:21:51Z","SequenceNo":1}]},{"DayName":"Monday","IsException":false,"StartTime":"2023-01-04T10:58:32Z","EndTime":"2023-01-04T11:28:32Z","VehicleId":"1bbcb5fd-4ea0-4c80-8b5b-ea656179cbf2","VehicleName":"Vehicle 2","Round":2,"PickupInfo":[{"BusinessUnitId":"92e2ad02-60a6-11ed-977e-066a5dfdcb56","BusinessUnitName":"Imam Abdul Azis","AddressId":"8e08dfc9-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address Pick 1","CountryId":3,"PostalCode":2423434,"AddressLine1":"Line 1","AddressLine2":"Line 2","Phone":2147483647,"Notes":"DARA CONGE","SequenceNo":1}],"SalesInfo":[{"AddressId":"a26ecc1c-8c1d-11ed-9d39-06ffd9c4214c","AddressRef":"s","AddressName":"Address sales 1 ID","CountryId":2,"PostalCode":2324343,"AddressLine1":"Line 1","AddressLine2":"Line 2","Phone":2147483647,"StartTime":"2023-01-04T10:58:32Z","EndTime":"2023-01-04T11:28:32Z","SequenceNo":1}]},{"Round":1,"DayDate":"2023-04-12T00:00:00.000Z","DayName":"Wednesday","EndTime":"2023-04-11T15:42:53.381Z","StartTime":"2023-04-11T15:42:53.381Z","VehicleId":"","VehicleName":"","PickupInfo":[],"SalesInfo":[],"IsException":false}]
Tests:
Concat
var newCopy=data.concat(data)
Spread
var newCopy=[...data,...data]
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Concat
Spread
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Measuring the performance of JavaScript microbenchmarks is crucial to understand the efficiency of different approaches in various scenarios. **Benchmark Definition and Script Preparation Code** The provided JSON represents a benchmark definition with two test cases: "Concat" and "Spread". The script preparation code for each test case is included: * For the "Concat" test case, the script preparation code is `var newCopy=data.concat(data)`. This approach uses the built-in JavaScript method `concat()` to concatenate the `data` array with itself. * For the "Spread" test case, the script preparation code is `var newCopy=[...data,...data]`. This approach uses the spread operator (`...`) to create a new array that includes all elements from the original `data` array, followed by an additional copy of the same array. **Options Compared** The two options being compared are: * **Concatenation using `.concat()`**: This method creates a new array and copies the original data into it. * **Spread operator (`...`)**: This method creates a new array and adds the elements from the original data, followed by an additional copy of the same array. **Pros and Cons** Here's a brief summary of the pros and cons of each approach: * **Concatenation using `.concat()`**: * Pros: * Well-documented and widely supported * Can handle large datasets efficiently * Cons: * Creates a new array, which can be memory-intensive for large datasets * May not be the most efficient approach due to the overhead of function calls * **Spread operator (`...`)**: * Pros: * More concise and expressive than concatenation using `.concat()` * Can handle large datasets efficiently, without creating an intermediate array * Cons: * Less widely supported in older browsers or versions of JavaScript * May not be suitable for very large datasets due to memory constraints **Library Usage** None of the provided script preparation codes use any external libraries. The `concat()` method and spread operator are built-in JavaScript features. **Special JS Features/Syntax** The spread operator (`...`) is a relatively recent feature in JavaScript, introduced in ECMAScript 2015 (ES6). It allows you to create new arrays by copying elements from an existing array or other iterable sources. The `concat()` method has been part of the JavaScript language since its inception. **Latest Benchmark Result** The latest benchmark result shows that the "Spread" test case outperforms the "Concat" test case, with approximately 1.8 million more executions per second on a desktop device running Firefox 112. In summary, the spread operator (`...`) is a more efficient approach than concatenation using `.concat()` for creating new arrays from large datasets in JavaScript. However, it's essential to consider the potential limitations and compatibility issues when choosing an optimization technique.
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