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Array 생성 방식에 따른 성능
(version: 0)
생성방식에 따른 성능 비교
Comparing performance of:
리터럴 방식 vs 생성자 방식
Created:
4 years ago
by:
Guest
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Tests:
리터럴 방식
const a =[];
생성자 방식
const a = new Array();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
리터럴 방식
생성자 방식
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 the provided benchmark and explain what is being tested, compared, and the pros and cons of each approach. **Benchmark Overview** The benchmark compares two ways to create an empty array in JavaScript: literal syntax (`const a =[];`) and constructor function syntax (`const a = new Array();`). **What is being tested?** In this benchmark, we're testing the performance difference between these two approaches. The test cases are designed to create an empty array using each method and then execute a simple loop to see which approach is faster. **Options compared** We have two options: 1. **Literal syntax**: `const a =[];` - This approach uses the literal syntax to create an empty array. 2. **Constructor function syntax**: `const a = new Array();` - This approach uses the constructor function syntax to create an empty array. **Pros and Cons** * **Literal Syntax**: + Pros: Easy to read and write, intuitive for developers who are familiar with JavaScript arrays. + Cons: May be slower than the constructor function syntax due to the overhead of creating a new object. * **Constructor Function Syntax**: + Pros: Can be faster than literal syntax since it avoids the overhead of creating a new object. + Cons: Requires more code and may be less intuitive for developers who are not familiar with JavaScript arrays. **Library used** None. This benchmark doesn't use any external libraries or frameworks. **Special JS feature/syntax** There is no special JavaScript feature or syntax being tested in this benchmark. It's a simple comparison of two basic array creation methods. **Other alternatives** If you wanted to create an empty array, there are other approaches you could use: * `[]`: This is another way to create an empty array using the literal syntax. * `new Array(0)`: This approach creates a new array with 0 elements using the constructor function syntax. It's worth noting that in modern JavaScript, these two methods are generally considered equivalent and may have similar performance characteristics. However, this benchmark aims to compare the performance of each method on a specific test case. **Conclusion** In summary, this benchmark compares the performance of two ways to create an empty array in JavaScript: literal syntax and constructor function syntax. The pros and cons of each approach are discussed, and other alternatives for creating an empty array are mentioned.
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