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ㅇㄹㄴㄹㅇㄴㅇㄴ
(version: 0)
ㄴㅇㅁㅁㅁ
Comparing performance of:
ㅁ vs 1221
Created:
4 years ago
by:
Guest
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Tests:
ㅁ
var customer_no = []; var chk_no = "sdfdsfdsfds," customer_no += chk_no
1221
var customer_no = []; var chk_no = "sdfdsfdsfds," customer_no.concat(chk_no)
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Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
ㅁ
1221
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help explain the benchmark. **What is being tested?** The benchmark tests two different approaches to appending a string to an empty array (`customer_no`) in JavaScript. The first approach uses the `+=` operator, and the second approach uses the `concat()` method. **Options compared:** 1. **`+=` operator**: This approach uses the assignment operator (`=`) followed by the `+=` operator to append the string `chk_no` to `customer_no`. This is a simple and intuitive way to perform string concatenation. 2. **`concat()` method**: This approach uses the `concat()` method to concatenate `customer_no` with `chk_no`. The `concat()` method returns a new array containing all elements from both arrays, which is then assigned back to `customer_no`. **Pros and cons:** 1. **`+=` operator**: * Pros: Simple and efficient for small strings. * Cons: Can be slower for larger strings due to the overhead of creating a temporary string object. 2. **`concat()` method**: * Pros: More explicit and predictable, as it creates a new array with the concatenated elements. * Cons: May be slower than the `+=` operator for small strings. **Library used:** None of the benchmark tests use any external libraries. **Special JS feature or syntax:** There is no special JavaScript feature or syntax being tested in this benchmark. The focus is on comparing two simple approaches to string concatenation. **Other alternatives:** Instead of using `+=` or `concat()`, other approaches to concatenate strings to an array include: * Using the spread operator (`...`) and assigning it back to the array: `customer_no = [...customer_no, chk_no]` * Using a for loop to iterate over the elements of `chk_no`: `for (var i = 0; i < chk_no.length; i++) { customer_no.push(chk_no[i]) }` These alternatives may offer better performance or predictability than the original approaches being compared. However, they are not part of the benchmark tests and were not considered as options to compare. In general, when it comes to string concatenation in JavaScript, `+=` is often a good choice for small strings due to its simplicity and efficiency. For larger strings, the `concat()` method or other approaches may be more suitable to ensure predictability and performance.
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