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array test 123123123123
(version: 0)
Comparing performance of:
header and array vs unshift header and array
Created:
5 years ago
by:
Guest
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Script Preparation code:
var header = 'header' var arr = ['a', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c', 'b', 'c'];
Tests:
header and array
[header,...arr].join('\n')
unshift header and array
arr.unshift(header) arr.join("\n")
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
header and array
unshift header and array
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 explain what's being tested in the provided JSON. **Overview** The test cases compare two approaches to concatenate an HTML header with an array of strings, separated by newline characters (`\\n`). **Test Cases** There are two individual test cases: 1. **"header and array "`**: This test case concatenates the `arr` array with a newline character (`\\n`) using the `.join()` method. 2. **"unshift header and array "`**: This test case concatenates the `arr` array with a newline character (`\\n`) after shifting the `header` variable to the beginning of the array using the `unshift()` method. **Comparison** The two approaches are compared in terms of performance, measured by the number of executions per second (`ExecutionsPerSecond`). **Options Compared** The options being compared are: * Using the `.join()` method to concatenate the string and array * Using the `unshift()` method followed by the `.join()` method to concatenate the string and array **Pros and Cons of Each Approach** 1. **`.join()` Method** * Pros: + Efficient use of memory, as it creates a new array with the concatenated strings + Can handle large arrays without performance issues * Cons: + May not be suitable for all data types or edge cases 2. **`unshift()` and `.join()` Method** * Pros: + Efficient use of memory, similar to the `.join()` method * Cons: + Requires extra memory allocation for the `header` variable + May not be suitable for large arrays or edge cases **Library Used** There is no explicit library used in these test cases. The code relies on built-in JavaScript methods and operators. **Special JS Features/Syntax** There are no special JavaScript features or syntax used in these test cases. However, it's worth noting that the use of template literals (`[header,...arr]`) is a relatively modern feature introduced in ECMAScript 2015 (ES6). **Other Alternatives** If you wanted to compare other approaches, you could consider using: * Using `concat()` method to concatenate the string and array * Using a custom function to concatenate the string and array * Using a library like Lodash or Ramda for more complex concatenation operations Keep in mind that these alternatives might have different performance characteristics or trade-offs depending on your specific use case.
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