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Javascript if condition < 0
(version: 0)
Comparing performance of:
If !~ operator vs If < 0 operator
Created:
6 years ago
by:
Guest
Jump to the latest result
Tests:
If !~ operator
let i = 1; return !~i;
If < 0 operator
let i = 1; return i < 0;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
If !~ operator
If < 0 operator
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 data and explain what's being tested, compared, and some pros and cons of different approaches. **Benchmark Definition** The provided Benchmark Definition json represents a JavaScript microbenchmark that tests the performance of two specific operators: `!~` (bitwise NOT operator) and `< 0` (less than zero). The benchmark is designed to measure which one is more efficient in terms of executions per second. **Options Compared** There are only two options being compared: 1. **`!~` operator**: This operator performs a bitwise NOT operation on the value `i`, effectively converting it to its binary representation and flipping all bits. 2. **`< 0` operator**: This operator checks if the value `i` is less than zero. **Pros and Cons of Different Approaches** * For the `!~` operator: + Pros: Fast and efficient, as it only requires a single operation to convert the value to its binary representation. + Cons: May not be suitable for all use cases, as it performs a bitwise NOT operation, which can affect bit-level operations. * For the `< 0` operator: + Pros: Simple and easy to understand, as it checks if the value is less than zero directly. + Cons: May be slower than the `!~` operator due to the additional comparison. **Library Used** There doesn't appear to be any specific library being used in this benchmark. The script preparation code is empty, suggesting that no external libraries are required to run this benchmark. **Special JS Features/Syntax** None mentioned. This benchmark only uses basic JavaScript operators and syntax. **Other Alternatives** If you wanted to create a similar benchmark for the `!~` operator using a different approach, you could consider: * Using bitwise shift operators (`>>>` or `<<`) instead of `!~` * Implementing the `!~` operator manually using bitwise operations * Comparing the performance of different JavaScript engines (e.g., V8, SpiderMonkey) with this benchmark Keep in mind that creating a similar benchmark would require modifying the script preparation code to accommodate the new approach. **Benchmark Preparation Code** Since there is no script preparation code provided for the Benchmark Definition json, it's likely that the author intended for users to provide their own JavaScript code for testing.
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