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new singleton set
(version: 0)
Comparing performance of:
initialize with array vs initialize empty, then add
Created:
2 years ago
by:
Guest
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Tests:
initialize with array
const a = new Set(["a"])
initialize empty, then add
const a = new Set() a.add("a")
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Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
initialize with array
initialize empty, then add
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down what's being tested in this benchmark. The provided JSON represents two test cases for measuring the performance of creating and manipulating `Set` objects in JavaScript. A `Set` is a collection of unique values, similar to an array, but with some key differences: * Sets are unordered, meaning their elements are not necessarily stored in any particular order. * Sets do not allow duplicate values, so adding the same value multiple times has no effect on the set. * Sets have fast lookup and insertion operations. The benchmark tests two different approaches to creating a `Set` object: 1. **Initializing an empty Set**: This approach creates a new `Set` object without any elements. The test case uses the following code: `"const a = new Set()"`. * Pros: * Simple and straightforward way to create a new, empty `Set`. * No overhead due to initial element population. * Cons: * Potential overhead due to setting up the `Set` object's internal state. 2. **Initializing a Set with an array**: This approach creates a new `Set` object and adds elements to it from an array. The test case uses the following code: `"const a = new Set([\"a\"])"` or `"const a = new Set()\r\na.add(\"a\")"`. * Pros: * Can be more efficient if the array is large, since it avoids creating intermediate objects and copying values. * Reduces potential overhead due to setting up the `Set` object's internal state. * Cons: * May incur additional overhead due to parsing and processing the array elements. * Requires an initial operation (adding all elements) that might not be necessary if only one element is added. In both test cases, the goal is to measure the execution time of creating and manipulating a `Set` object. The benchmark likely aims to identify which approach is faster and more efficient for common use cases. Regarding special JavaScript features or syntax: * **Arrow functions**: There is no indication that this benchmark uses arrow functions, which are used for concise function definitions. * **Classes**: There is also no indication of class usage in the provided code snippets.
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