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jamal murray
(version: 0)
Comparing performance of:
destructuring vs push
Created:
one year ago
by:
Guest
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Tests:
destructuring
var params = [ "hello", true, 7 ] var other = [ ...params, 'new', 'jamal murray' ]
push
var params = [ "hello", true, 7 ] params.push('new') params.push('jamal murray')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
destructuring
push
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser/OS:
Chrome 126 on Mac OS X 10.15.7
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Test name
Executions per second
destructuring
58845404.0 Ops/sec
push
85698600.0 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark data and explain what's being tested, compared, and discussed. **Benchmark Overview** The provided benchmark is a JavaScript microbenchmark created using MeasureThat.net. The goal of this benchmark is to compare the performance of two different approaches: destructuring and pushing elements onto an array. **Test Cases** There are two test cases: 1. **Destructuring**: This test case defines an array `params` with three initial elements: `"hello"`, `true`, and `7`. Then, it uses the spread operator (`...`) to create a new array by spreading the original array and adding two additional elements: `'new'` and `'jamal murray'`. 2. **Push**: This test case defines an array `params` with three initial elements: `"hello"`, `true`, and `7`. Then, it pushes two additional elements onto the end of the array using the `push()` method. **Comparison** The benchmark compares the performance of these two approaches: * Destructuring (using the spread operator) * Pushing elements onto an array (using the `push()` method) **Pros and Cons** **Destructuring:** Pros: * More concise and expressive code * Less memory allocation, as it avoids creating a new intermediate array * Can be more efficient for large arrays Cons: * May have performance overhead due to the creation of an intermediate array (although this is typically negligible) * May not work as expected in all cases, especially with complex data structures or array literals **Push:** Pros: * More straightforward and familiar syntax * Often preferred by developers due to its simplicity and readability * Works consistently across most JavaScript implementations Cons: * Requires more memory allocation, as an intermediate array is created * Can be less efficient for large arrays, especially if the `push()` method needs to allocate new memory **Library Usage** There is no explicit library usage in this benchmark. **Special JS Features or Syntax** None of the provided test cases use special JavaScript features or syntax. They are straightforward examples of array manipulation using built-in methods and operators. **Alternatives** Other alternatives for comparing performance in a microbenchmark like this one could include: * Using a different data structure, such as a linked list or a vector * Implementing custom iteration mechanisms (e.g., `forEach()`, `for...of`) * Comparing the performance of different algorithmic approaches to solve the same problem Keep in mind that the choice of alternatives will depend on the specific requirements and goals of the benchmark.
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