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toFixed()
(version: 0)
Benchmark.js
Convert int to string using toFixed()
Comparing performance of:
toFixed(1) vs toString()
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
value = 12.5
Tests:
toFixed(1)
value.toFixed(1)
toString()
value.toString()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
toFixed(1)
toString()
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser/OS:
Chrome 120 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=490323" width="100%" height="500px"></iframe>
toString()
6.4M/s
toFixed(1)
3.1M/s
View exact numbers
Test name
Executions per second
✓
toString()
6,428,718 Ops/sec
toFixed(1)
3,149,891 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the test cases and explain what is being tested. **Benchmark Definition** The provided JSON represents a benchmark definition for measuring the performance of JavaScript's `toFixed()` function. It defines two different scenarios: 1. The original `toFixed()` function, which converts an integer to a string with a specified number of decimal places. 2. A variant of `toFixed()`, where the value is converted to a string using the `toString()` method. **Options Compared** The test compares two options for converting an integer to a string: 1. **`toFixed()`**: This function takes two arguments: the number to be converted and the number of decimal places. 2. **`toString()`**: This function converts its argument to a string, without any additional formatting. **Pros and Cons** **`toFixed()`** Pros: * More flexible, as it allows for precise control over the number of decimal places. * Can handle large numbers with many decimal places efficiently. Cons: * May incur higher overhead due to the additional arguments and logic required. **`toString()`** Pros: * Simpler and more straightforward, requiring less overhead. * Can be faster in some cases, as it only requires a single string conversion. Cons: * Less flexible, as it always converts the number to a string without any precision control. * May lose precision for very large numbers with many decimal places. **Library Usage** In the test case, no specific library is used. However, if we consider the `toFixed()` function itself, it relies on the browser's implementation of this function. The browser's implementation may use various optimizations and techniques to improve performance. **Special JS Features/Syntax** There are no special JavaScript features or syntax mentioned in the provided code. It only uses standard JavaScript methods (`toFixed()`, `toString()`) without any custom implementations or advanced features like async/await, promises, or modern JavaScript language features (like arrow functions, destructuring, etc.). **Other Alternatives** If you need to measure performance of other string formatting functions, consider the following alternatives: 1. **`padStart()`**: Similar to `toFixed()`, but pads the number with spaces on the left instead of zeros. 2. **`padEnd()`**: Similar to `toFixed()`, but pads the number with spaces on the right instead of zeros. 3. **`format()`**: Some browsers (like Chrome) have a built-in formatting function called `format()`. This function allows for more complex formatting options, like specifying a specific format mask. Keep in mind that these alternatives may not provide identical performance characteristics as `toFixed()`, and their usage depends on the specific requirements of your use case.
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