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My Own Test Push, concat , spred.
(version: 0)
Compare the new ES6 spread operator with the traditional concat() method and push
Comparing performance of:
Array.prototype.concat vs spread operator vs Push
Created:
7 years ago
by:
Guest
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Tests:
Array.prototype.concat
var params = [ {}, {},{} ]; var other = params.concat({});
spread operator
var params = [ {}, {},{} ]; var other = [ ...params, {} ]
Push
var params = [ {}, {},{} ]; params.push({});
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Array.prototype.concat
spread operator
Push
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the benchmark and explain what's being tested. **Benchmark Definition** The benchmark is designed to compare three different approaches for modifying an array in JavaScript: 1. The traditional `concat()` method 2. The spread operator (`...`) 3. The `push()` method The benchmark aims to measure the performance of each approach, specifically the number of executions per second. **Options Compared** We have two main options being compared: * **Traditional Concat**: Using the `concat()` method to add an element to the end of an array. * **Spread Operator**: Using the spread operator (`...`) to create a new array with the original elements and additional elements. * **Push**: Using the `push()` method to add an element to the end of an array. **Pros and Cons** Here are some pros and cons for each approach: * **Traditional Concat**: + Pros: Simple, widely supported, and easy to use. + Cons: Can lead to performance issues if the array is large or frequently modified. * **Spread Operator**: + Pros: Modern, efficient, and concise. Reduces the need for explicit array copying. + Cons: May not be as well-supported in older browsers or versions of JavaScript. * **Push**: + Pros: Simple, fast, and widely supported. Can lead to fewer unnecessary copies of data. + Cons: May require more manual management of array length and bounds. **Library Usage** None of the benchmark's test cases explicitly use any libraries. However, it's worth noting that `concat()` is a built-in method on arrays in JavaScript, while `push()` is also a built-in method. The spread operator (`...`) was introduced in ECMAScript 2015 (ES6) and is now widely supported. **Special JS Feature or Syntax** The benchmark uses the spread operator (`...`), which was introduced in ES6 as a new syntax for creating arrays with multiple elements. **Other Alternatives** If we were to consider alternative approaches, some additional options could be: * Using `array.prototype.splice()` instead of `concat()` * Using a library like Lodash or Ramda for array operations * Using a different data structure, such as an object or a linked list However, these alternatives are not part of the benchmark's original scope and would require additional modifications to the test cases. In summary, the benchmark provides a straightforward comparison between three approaches for modifying arrays in JavaScript. The results can help developers understand the performance characteristics of each approach and make informed decisions about which one to use depending on their specific requirements.
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