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math.abs vs Number
(version: 1)
Comparing performance of:
math.abs vs Number
Created:
one year ago
by:
Guest
Go to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
num = -2.2
Tests:
math.abs
Math.abs(num)
Number
Number(num)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
math.abs
Number
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 days ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36 Edg/151.0.0.0
Browser/OS:
Chrome 151 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=633520" width="100%" height="500px"></iframe>
Number
1064.1M/s
math.abs
1056.7M/s
View exact numbers
Test name
Executions per second
✓
Number
1,064,054,272 Ops/sec
math.abs
1,056,693,312 Ops/sec
Autogenerated LLM Summary
(model
gpt-4o-mini
, generated one year ago):
The benchmark in question compares the performance of two approaches to obtain the absolute value of a number in JavaScript: `Math.abs(num)` and `Number(num)`. ### Options Compared 1. **Math.abs(num)**: This is a function provided by JavaScript's built-in `Math` object, specifically designed to return the absolute value of a number. In this case, it is used to convert `-2.2` to `2.2`. 2. **Number(num)**: This is a constructor that can be used to convert values to a number type. When passed a numeric value, such as `-2.2`, it will return the same value, but `Number()` doesn't specifically aim to return the absolute value of its argument. Using it to get the absolute value involves additional logic to handle negatives, typically either comparing the number to zero or using conditional statements. ### Pros and Cons of Approaches **Math.abs(num)**: - **Pros**: - Direct and specific: Explicitly designed to return the absolute value. - Generally faster because it involves a single function call without conditional checks. - **Cons**: - None significant regarding performance in this context. **Number(num)**: - **Pros**: - Can be used for type conversion in general, making it versatile for different contexts beyond just calculating absolute values. - **Cons**: - Not designed for obtaining the absolute value, thus requiring additional logic to achieve this (like comparing and negating). - Typically slower than `Math.abs`, as shown in the benchmark results where `Number(num)` achieved significantly fewer executions per second. ### Benchmark Results In the benchmark results, we can see the metrics of performance: - For `Math.abs(num)`, the benchmark recorded approximately **1,178,606,976** executions per second. - For `Number(num)`, it recorded around **64,936,004** executions per second. Clearly, `Math.abs(num)` is vastly superior in performance, making it the better choice when specifically needing the absolute value. ### Libraries/Syntax In this benchmark, no external library is employed, and the syntax is standard JavaScript. The features used are core to the JavaScript language: the `Math` object and the `Number` constructor. ### Alternatives Besides `Math.abs` and `Number`, other alternatives to obtain absolute values could include: - Simple conditional expressions, such as `num < 0 ? -num : num`, though this approach is more verbose and less performant than either of the two methods tested. - In functional programming paradigms, you might see libraries or utility functions designed to handle numerical operations but, again, `Math.abs` is the most direct and efficient method for this specific task. Overall, the benchmark clearly indicates that for getting the absolute value, `Math.abs` is the optimal choice in terms of both clarity and performance.
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