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addtion operator vs plus
(version: 0)
Comparing performance of:
addition vs plus
Created:
4 years ago
by:
Guest
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Tests:
addition
let a = 0; for (let i = 0; i<=100000; i++){ a += i }
plus
let a = 0; for (let i = 0; i<=100000; i++){ a = a + i }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
addition
plus
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark and explain what's being tested. **Benchmark Overview** MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks. The benchmark in question compares two ways of performing addition: using the `+` operator and using the assignment syntax (`a = a + i`). **Options Compared** The test case uses two options: 1. **`a += i`**: This is an example of shorthand arithmetic, which allows you to combine addition and assignment operations into a single statement. 2. **`a = a + i`**: This is the traditional way of performing addition in JavaScript. **Pros and Cons** * **Shorthand Arithmetic (`a += i`)** + Pros: - More concise and readable code - Can be faster since it avoids the overhead of an assignment operation + Cons: - Some older browsers or environments might not support shorthand arithmetic, leading to slower performance - May have different behavior in certain edge cases (e.g., when using `+=` with a negative value) * **Traditional Addition (`a = a + i`)** + Pros: - More widely supported across browsers and environments - Easier to understand for developers who are not familiar with shorthand arithmetic + Cons: - Less concise and less readable than shorthand arithmetic **Library and Special JS Feature** There is no library being used in this benchmark. However, it's worth noting that some modern JavaScript engines, such as V8 (used by Chrome), have optimized the performance of both shorthand arithmetic and traditional addition. **Test Case Considerations** The test case is designed to demonstrate the performance difference between two common ways of performing addition in JavaScript. By using a large loop (`for (let i = 0; i<=100000; i++)`) and adding the increment value to a variable, the benchmark simulates a scenario where this operation might be performed frequently. **Other Alternatives** In general, for simple arithmetic operations like addition, shorthand arithmetic (`a += i`) is often preferred due to its conciseness and readability. However, in more complex scenarios or when working with older browsers or environments, traditional addition (`a = a + i`) might be a better choice. It's worth noting that MeasureThat.net uses a variety of test cases and benchmarking techniques to provide a comprehensive understanding of JavaScript performance. This specific benchmark is just one example of how the platform works.
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