Benchmark: json stringify vs String() vs int tostring

Script Preparation code:

function makeTestData() { return 1; }

Tests:

toString
makeTestData().toString()
JSON.stringify
JSON.stringify(makeTestData());
String()
String(makeTestData());

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
toString
JSON.stringify
String()

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 provided JSON and explain what's being tested.

**Benchmark Definition**

The test case defines three different ways to convert an integer value (1) into a string:

1. Using `toString()`: A built-in JavaScript method that converts an object into its string representation.
2. Using `String()`: The concatenation operator (`+`) with the string `" "` as the separator, which is equivalent to calling `toString()` on the object.
3. Using `JSON.stringify()`: A function from the `JSON` object that converts a value (in this case, an integer) into its JSON representation.

**Options Comparison**

These three approaches differ in terms of performance and readability:

* **`toString()`**: This is the most straightforward way to convert an object to a string. However, it may not be the fastest option since it involves calling a method on the object.
* **`String()`**: This approach uses the concatenation operator, which can lead to slower performance compared to `toString()`. It's also less readable, as it requires chaining multiple operations together.
* **`JSON.stringify()`**: This is likely the slowest option due to its additional processing and serialization steps. However, it may provide a more predictable and consistent string representation, especially for dates or objects.

**Pros and Cons**

Here are some pros and cons of each approach:

* `toString()`: Pros: Fast, straightforward, readable. Cons: May not be as predictable as other options.
* `String()` : Pros: None notable. Cons: Slow, less readable.
* `JSON.stringify()` : Pros: Predictable string representation. Cons: Slow, unnecessary overhead.

**Library and Special JS Features**

The provided benchmark code doesn't use any external libraries. However, it does utilize the following special JavaScript features:

* **Arrow functions**: The `makeTestData` function is defined using an arrow function (`function makeTestData() { return 1; }`). This allows for concise and readable code without explicitly declaring a function.
* **Template literals** are not used, but the single quotes around `String(makeTestData())` could be interpreted as template literals if there were any placeholders inside the string. However, in this case, they're simply used to invoke the `String()` method.

**Other Alternatives**

If you want to explore alternative approaches, here are a few options:

* Using `Intl`: You can use the `Intl` API to format numbers as strings with specific cultural or linguistic preferences.
* Using regex: You could use regular expressions to convert an integer to a string. However, this approach is generally less readable and more prone to errors.
* Using a custom implementation: You could implement your own custom function to convert integers to strings, but this would likely be slower than the built-in options provided by JavaScript.

In summary, the benchmark is designed to compare the performance of three different ways to convert an integer value into a string. `toString()` provides a fast and straightforward approach, while `JSON.stringify()` offers a more predictable string representation at the cost of speed.

Related benchmarks:

json stringify vs String() vs int tostring (version: 0)

Comparing performance of: toString vs JSON.stringify vs String()

Created: 3 years ago by: Guest

Jump to the latest result

toString

JSON.stringify

String()

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):