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2-if vs && (condition)
(version: 0)
Comparing performance of:
condition via `if` statement vs condition via `&&` statement
Created:
3 years ago
by:
Guest
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Script Preparation code:
var stuff = 'stuff'; function someFunction () { return 5; }
Tests:
condition via `if` statement
if (stuff) { someFunction(); }
condition via `&&` statement
stuff && someFunction();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
condition via `if` statement
condition via `&&` statement
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 you understand what's being tested in this benchmark. **What is being tested?** MeasureThat.net is testing two different ways of evaluating conditional statements (if and &&) in JavaScript, specifically with regards to their performance. The benchmark is comparing the execution speed of: 1. `if` statement: `if (stuff) { someFunction(); }` 2. `&&` statement: `stuff && someFunction();` **Options compared** In this case, there are only two options being compared: * `if` statement * `&&` statement **Pros and Cons of each approach** 1. **`if` statement**: * Pros: Can be more readable and maintainable for simple conditions. * Cons: May lead to unnecessary checks if the condition is false, potentially slowing down the execution. 2. **`&&` statement**: * Pros: More concise and can reduce unnecessary checks since it short-circuits as soon as the first operand is falsy. * Cons: Can be less readable and maintainable for complex conditions. It's worth noting that the `&&` statement also introduces additional overhead due to the evaluation of each operand, which may negate some of its benefits. **Library usage** There doesn't seem to be any specific library used in this benchmark. The variables `stuff` and `someFunction` are defined within the script preparation code. **Special JavaScript feature or syntax** There's no special JavaScript feature or syntax mentioned in this benchmark. It only uses standard JavaScript features. **Other considerations** The benchmark is testing performance, so it's likely that other factors like caching, memoization, or optimization by the browser/JavaScript engine are not considered here. **Alternatives** If you were to create a similar benchmark for more complex conditions, you could consider adding additional options, such as: * `?:` (ternary operator) instead of `if` * `===` and `!==` operators * Function calls with early returns However, for simple conditional statements like this one, the comparison between `if` and `&&` should suffice. If you're interested in exploring more complex conditions or other aspects of JavaScript performance, MeasureThat.net also offers benchmarks for other topics, such as string manipulation, loop optimizations, or event handling.
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