Benchmark: 54646456547457457345

Script Preparation code:

var str = "a"

Tests:

1
str.charCodeAt(0).toString()
2
str.codePointAt(0).toString()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

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):

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Let's break down the benchmark and its options.

**Benchmark Definition JSON**

The provided JSON defines two benchmarks: `str.charCodeAt(0).toString()` and `str.codePointAt(0).toString()`. These benchmarks test the performance of different methods to convert a character to a string in JavaScript.

**Options Compared**

There are two options compared:

1. **charCodeAt(0)**: This method returns an integer representing the Unicode code point at index 0 of the given string.
2. **codePointAt(0)**: This method returns a number representing the Unicode code point at position 0 within the given string.

**Pros and Cons**

*   `charCodeAt(0)`:
    *   Pros:
        *   Widely supported in older browsers.
        *   Generally faster than `codePointAt(0)`.
    *   Cons:
        *   Returns a number representing the Unicode code point, not a string. This might require additional conversion if the intention is to get a string representation of the character.
*   `codePointAt(0)`:
    *   Pros:
        *   Returns a string representing the Unicode code point at position 0 within the given string.
        *   More suitable for modern browsers and applications where string representation is desired.

**Library Usage**

There is no library explicitly mentioned in this benchmark. However, it's worth noting that the `codePointAt(0)` method uses the Intl.Segmenter API under the hood to break down the input string into individual Unicode code points. This might be considered a library or an implementation detail, depending on the context.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax explicitly mentioned in this benchmark.

**Other Alternatives**

If you want to test different methods for converting characters to strings, here are some alternative approaches:

*   Using `toString()`: This method converts a number (in this case, the result of `charCodeAt(0)` or `codePointAt(0)`) to a string. However, it's generally less efficient than `codePointAt(0)` and might not be supported in older browsers.
*   Using `String.fromCharCode()`: This method converts an integer representing a Unicode code point back into its corresponding character. However, it can lead to issues if the input is not valid or if the desired code point is outside the range of the character set.

To create a new benchmark with these alternatives, you would modify the script preparation code accordingly:

*   `str.toString()` instead of `str.charCodeAt(0).toString()`
*   `String.fromCharCode(codePointAt(0))` instead of `codePointAt(0).toString()`

Keep in mind that the choice of method will affect the benchmark results and may require adjustments to your test cases.

Related benchmarks:

54646456547457457345 (version: 0)

Comparing performance of: 1 vs 2

Created: 4 years ago by: Guest

Jump to the latest result

1

2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):