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5464645654745745734634
(version: 0)
Comparing performance of:
1 vs 2
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var str = "\x02 { dfgdhfdjfd d : djdfjsdh }"
Tests:
1
str.charCodeAt(0).toString()
2
str.codePointAt(0).toString()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
1
2
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 JSON data and explain what's being tested. **Benchmark Definition** The benchmark definition is a simple JavaScript expression that measures the performance of two different approaches to convert a character code or code point to a string using Unicode escape sequences (`\xXX`). There are two expressions: 1. `str.charCodeAt(0).toString()` 2. `str.codePointAt(0).toString()` These expressions are testing the following aspects: * How fast can we get the ASCII value of a character using `charCodeAt()`? * How fast can we get the Unicode code point of a character using `codePointAt()`? * How do these methods affect performance when converting to a string? **Options Compared** In this benchmark, two options are being compared: 1. **`charCodeAt(0).toString()`**: This approach uses the ASCII value of the first character (`str.charCodeAt(0)`) and converts it to a string using `toString()`. This is a simple way to convert a single code point to a Unicode escape sequence. 2. **`codePointAt(0).toString()`**: This approach uses the Unicode code point of the first character (`str.codePointAt(0)`) and converts it to a string using `toString()`. This method is more accurate when dealing with non-ASCII characters. **Pros and Cons** Here are some pros and cons of each approach: 1. **`charCodeAt(0).toString()`**: * Pros: Simple, widely supported. * Cons: May not work correctly for non-ASCII characters, may be slower due to the conversion step. 2. **`codePointAt(0).toString()`**: * Pros: More accurate when dealing with non-ASCII characters, potentially faster since it doesn't require an additional conversion step. * Cons: Requires support for Unicode code points, which can be less common. **Library and Special JS Feature** There is no explicit library being used in this benchmark. However, the `codePointAt()` method is a modern JavaScript feature introduced in ECMAScript 2015 (ES6). If you're running an older version of JavaScript that doesn't support `codePointAt()`, this benchmark may not work as expected. **Other Alternatives** If you want to create similar benchmarks or explore alternative approaches, here are some alternatives: 1. **`String.fromCharCode()`**: Instead of using `charCodeAt(0).toString()`, you could use `String.fromCharCode()` to get the Unicode character represented by a given code point. 2. **`Intl` API**: The `Intl` API provides functions for working with Unicode characters, including `codePointAt()`. You could create benchmarks using these APIs. Overall, this benchmark is testing the performance of two different approaches to converting a character code or code point to a string, with a focus on accuracy and speed.
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