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Number vs Number.parseInt vs parseInt
(version: 0)
Comparing performance of:
Number vs Number.parseInt vs parseInt
Created:
4 years ago
by:
Guest
Go to the latest result
Tests:
Number
Number('1');
Number.parseInt
Number.parseInt('1', 10);
parseInt
parseInt('1', 10);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Number
Number.parseInt
parseInt
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 months ago
)
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.0
Browser/OS:
Firefox 151 on Linux
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<iframe src="https://measurethat.net/Embed?id=629207" width="100%" height="500px"></iframe>
Number.parseInt
708.8M/s
Number
706.0M/s
parseInt
702.7M/s
View exact numbers
Test name
Executions per second
✓
Number.parseInt
708,847,360 Ops/sec
Number
705,970,688 Ops/sec
parseInt
702,653,696 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark test and explain what's being tested, compared, and its pros and cons. **Benchmark Test Overview** The benchmark test is designed to compare the performance of three different ways to convert a string to a number in JavaScript: 1. `Number()` 2. `Number.parseInt()` 3. `parseInt()` (without arguments) **What's being tested?** The test is measuring the execution time and frequency of each conversion method on various browsers, specifically Firefox 94. **Options compared:** * `Number()`: This method attempts to convert a string to a number by parsing it as a decimal value. * `Number.parseInt()`: This method converts a string to a number using the radix (base) parameter. In this case, no radix is specified, so it defaults to base 10. * `parseInt()`: This is another method that converts a string to a number using the radix parameter. **Pros and Cons of each approach:** * `Number()`: Pros - simple and intuitive; Cons - can lead to unexpected results if the input string cannot be converted to a number, and may perform string parsing which can be slower. * `Number.parseInt()`: Pros - provides more control over the conversion process, especially when working with different bases; Cons - requires an additional parameter, which may add complexity and overhead. * `parseInt()`: Pros - similar to `Number.parseInt()` but without the radix parameter; Cons - also requires an additional parameter, which may be seen as less flexible. **Library or special JavaScript feature:** None of these methods rely on any specific libraries or special JavaScript features beyond the standard library. The focus is on the fundamental syntax and behavior of each conversion method. **Other alternatives:** * `Number()` can be compared to other conversion methods, such as using regular expressions or string manipulation functions. * `parseInt()` with a radix parameter could be compared to `Number.parseInt()` for its added flexibility. To run this benchmark test, you would need to prepare the script and HTML files according to the provided JSON configuration. The script should contain the three benchmarking scripts: one for each conversion method. The HTML file would include a script tag referencing the prepared script file, as well as any necessary dependencies or libraries. The test users can then run the benchmark using the MeasureThat.net website, which will execute the tests on various browsers and report the results. This allows developers to compare the performance of these three conversion methods across different browsers and devices.
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