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testnew res
(version: 0)
Comparing performance of:
old vs old new
Created:
3 years ago
by:
Guest
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Tests:
old
let issuesNew = [{warning: 1,error:0,information: 0},{information: 1,error:0,warning: 1},{information: 0,error:0,warning: 1},{information: 0,error:0,warning: 0}] issuesNew.filter((issue) => issue.error > 0 || issue.infomation> 0 || issue.warning> 0)
old new
let issuesNew = [{warning: 1,error:0,information: 0},{information: 1,error:0,warning: 1},{information: 0,error:0,warning: 1},{information: 0,error:0,warning: 0}] issuesNew.filter((issue) => !(issue.warning === 0 && issue.error === 0 && issue.information === 0))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
old
old new
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 world of MeasureThat.net, where we'll explore the provided benchmark and its intricacies. **Benchmark Overview** MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks. The benchmarks are typically small pieces of code that measure the performance of specific tasks or features in JavaScript. The provided benchmark definition consists of two test cases: "old" and "old new". Both test cases use the `filter()` method to evaluate an array of objects with specific properties (warning, error, information). However, the second test case introduces a subtle difference using the `!` operator, which negates the comparison. **Options Compared** The two test cases compare the performance of two different approaches: 1. **Direct Filter**: The first test case uses the traditional `filter()` method with an inline callback function: `(issue) => issue.error > 0 || issue.information> 0 || issue.warning> 0`. This approach evaluates each element individually and checks for the desired conditions. 2. **Negated Comparison**: The second test case uses a negated comparison: `(issue) => !(issue.warning === 0 && issue.error === 0 && issue.information === 0)`. This approach is equivalent to the first one but uses the `!` operator to invert the comparison. **Pros and Cons of Each Approach** 1. **Direct Filter** * Pros: + More intuitive code structure + Easier to understand for developers familiar with traditional filtering. * Cons: + May be slightly slower due to the explicit evaluation of each element. 2. **Negated Comparison** * Pros: + Potentially faster, as it leverages the optimized `===` comparison under the hood. * Cons: + Less intuitive code structure + May require additional mental effort to understand the negation. **Library and Purpose** None of the test cases explicitly use a library. However, they do utilize JavaScript's built-in methods and operators, such as `filter()` and the comparison operators (`===`, `>`, etc.). **Special JS Features or Syntax** The test case "old new" uses the `!` operator, which is a logical negation operator in JavaScript. This syntax is not specific to MeasureThat.net but is a standard feature of modern JavaScript. **Other Considerations** When interpreting benchmark results, consider the following: * **Device and Browser Variations**: The provided result shows two different browsers (Chrome 109) with distinct execution rates for each test case. This suggests that device and browser differences can impact performance. * **Platform and OS**: The test is run on a Windows Desktop platform, which may influence results due to system-specific optimizations or limitations. **Alternatives** If you're looking to create your own JavaScript benchmarks or measure performance in a similar context, consider the following alternatives: 1. **Benchmarking libraries**: Tools like Benchmark.js, BenchmarkKit, or jsbench allow you to write and run benchmarks with ease. 2. **Performance-oriented frameworks**: Frameworks like Jest or Mocha provide built-in support for benchmarking and can be used for performance testing. Keep in mind that each alternative has its own strengths and weaknesses, and the choice ultimately depends on your specific needs and requirements.
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