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No return keyword vs implicit void return
(version: 0)
Comparing performance of:
No return vs Implicit return
Created:
4 years ago
by:
Guest
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Tests:
No return
const msg = "test"; const say = () => { console.log(msg); } say();
Implicit return
const msg = "test"; const say = () => console.log(msg); say();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
No return
Implicit return
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 and understand what's being tested in this benchmark. **Benchmark Definition** The provided JSON represents a simple benchmark that tests two different approaches to returning values from a JavaScript function: 1. **No return keyword**: This approach explicitly returns a value from the `say` function using the `return` statement. 2. **Implicit void return**: This approach does not use the `return` statement, effectively implying that the function returns `undefined`. **Options Compared** The benchmark compares the performance of these two approaches: * **No return keyword**: The function explicitly returns a value using the `return` statement. * **Implicit void return**: The function does not use the `return` statement and implicitly returns `undefined`. **Pros and Cons of Each Approach** 1. **No return keyword**: * Pros: Explicitly returns a value, making the code more readable and maintainable. * Cons: May incur additional overhead due to the explicit return statement. 2. **Implicit void return**: * Pros: Can be faster since it doesn't require an explicit `return` statement. * Cons: Code may become less readable and maintainable if not used judiciously. In general, using an explicit `return` statement can improve code readability, but may incur additional overhead. On the other hand, implicit returns can be faster but may lead to less readable code. **Library** None of the provided benchmark definitions use a specific JavaScript library. However, MeasureThat.net does provide a list of libraries that are available for testing on their platform, including: * `console.log()` * `Math.random()` * `Date.now()` If you'd like to add custom libraries or functions to your benchmarks, please refer to the MeasureThat.net documentation for more information. **Special JS Feature/Syntax** The benchmark does not use any special JavaScript features or syntax that are not widely supported. It only uses basic JavaScript concepts such as functions, `console.log()`, and variables. However, it's worth noting that some browsers may have specific optimizations or quirks when it comes to returning values from functions. For example, some browsers may optimize away unnecessary returns or use different handling for `undefined` returns. **Other Alternatives** MeasureThat.net provides a wide range of other benchmarks and testing tools for JavaScript performance comparison. Some examples include: * Benchmarks for popular libraries like React, Angular, and Vue.js * Tests for specific JavaScript features, such as async/await, Promises, and Web Workers * Comparison of different browser engines and their respective optimizations If you're interested in exploring more benchmarks or testing tools on MeasureThat.net, please refer to their documentation and available resources.
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