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toString vs +[]
(version: 0)
comparing the already fast toString to jsfuck-string conversion +[]
Comparing performance of:
.toString() vs +[]
Created:
3 years ago
by:
Guest
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Script Preparation code:
let num = 123456789876234;
Tests:
.toString()
let num = 123456789876234; num.toString();
+[]
let num = 123456789876234; num+[]
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
.toString()
+[]
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark definition and test cases to understand what is being tested. **Benchmark Definition** The benchmark definition describes two test cases: `toString()` and `+[]`. The purpose of this benchmark is to compare the performance of converting a large number to a string using two different approaches: 1. **`toString()`**: This method uses the built-in `toString()` function to convert the number to a string. 2. **`+[]`**: This method uses the unary plus operator (`+`) followed by an empty array (`[]`). The idea behind this approach is that in some older versions of JavaScript, the unary plus operator was optimized for numeric values, and concatenating it with an empty array might be faster. **Options Compared** The benchmark compares two options: 1. **`toString()`**: This is a built-in method in JavaScript that converts a value to its string representation. 2. **`+[]```**: This approach uses the unary plus operator followed by an empty array, which was previously considered as a way to optimize numeric values. **Pros and Cons** **`toString()`**: Pros: * Well-defined and widely supported * No additional libraries or dependencies required Cons: * May not be optimized for large numbers * Might have slower performance compared to the alternative approach **`+[]```**: Pros: * Was previously considered as a way to optimize numeric values * Simplistic implementation Cons: * Less well-defined and less widely supported * Requires careful consideration of specific browser versions and optimizations * May not be optimized for large numbers **Library or Special JS Feature** There is no library used in this benchmark. However, the use of the unary plus operator (`+`) followed by an empty array (`[]`) relies on a specific JavaScript optimization that was present in older versions. **Other Considerations** The benchmark only runs on Chrome 103 on desktop platforms. The test users may want to consider running the benchmark on different browsers or devices to ensure the results are representative of real-world scenarios. **Alternatives** Some possible alternatives for this benchmark could be: * Testing the performance of `toString()` and `+[]` with other data types, such as strings or arrays. * Using a more recent version of Chrome or another browser that may have optimized these methods differently. * Adding additional test cases to compare the performance of different string conversion methods, such as `String()` or `concat()`. * Running the benchmark on mobile devices or other platforms to ensure the results are representative of real-world scenarios.
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parseInt vs toString vs unary(+)
parseInt vs Number // toString vs String
parseInt vs toString vs string literal vs + empty string vs String constructor
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