Benchmark: json stringify vs array tostring base64

Script Preparation code:

function moreData(arr, left) {
  if(left === 0) return arr;
  else {
    arr.push(Math.floor(Math.random() * 256));
  	return moreData(arr, left - 1);
  }
}
function makeTestData() { return moreData([], 4); }

Tests:

to base64 string
makeTestData().toString("base64")
json stringify
JSON.stringify(makeTestData());

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
to base64 string
json stringify

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark definition is a JSON object that describes two test cases:

1. `makeTestData().toString("base64")`: This test case generates an array of 4 random numbers using the `moreData` function, converts it to a base64 string using the `toString` method with "base64" as the encoding.
2. `JSON.stringify(makeTestData())`: This test case generates an array of 4 random numbers using the `moreData` function and then uses the `JSON.stringify` method to convert it to a JSON string.

**Script Preparation Code**

The script preparation code defines two functions:

* `moreData(arr, left)`: This recursive function generates an array of a specified length by pushing random numbers onto it. The `left` parameter specifies the number of elements to generate.
* `makeTestData()`: This function calls `moreData` with an empty array and 4 as the arguments, generating an array of 4 random numbers.

**Options Compared**

The two test cases compare the performance of converting a data structure (an array) to a string using two different methods:

1. **toString("base64")**: This method uses the `toString` method with "base64" as the encoding to convert the array to a base64 string.
2. **JSON.stringify()**: This method uses the `JSON.stringify` method to convert the array to a JSON string.

**Pros and Cons**

Here are some pros and cons of each approach:

* **toString("base64")**:
	+ Pros:
		- May be faster for small arrays, as it can use optimized base64 encoding algorithms.
		- Can produce more compact output than JSON.stringify().
	+ Cons:
		- May not work correctly with non-ASCII characters or special values.
		- Can be slower for larger arrays due to the overhead of encoding and decoding.
* **JSON.stringify()**:
	+ Pros:
		- Works correctly with most data types, including non-ASCII characters and special values.
		- Can handle larger arrays more efficiently than toString("base64") because it uses a standardized JSON format.
	+ Cons:
		- May produce less compact output than toString("base64").
		- Can be slower due to the overhead of serializing and deserializing.

**Library Used**

There is no specific library used in this benchmark. The `JSON.stringify()` method is part of the standard JavaScript API.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntaxes being tested in this benchmark. However, it's worth noting that the use of "base64" as an encoding string with toString() is a non-standard usage and may not be supported by all browsers.

**Other Alternatives**

If you wanted to modify this benchmark to compare different approaches, here are some alternative methods you could consider:

1. Using `btoa()` instead of `toString("base64")`: This method uses the Browser API for base64 encoding.
2. Using a third-party library like `base64-js` or `json-stringify-safe` to compare the performance of different base64 encoding algorithms and JSON stringification methods.
3. Adding more data types (e.g., objects, arrays with non-numeric values) to test the robustness of both approaches.

Keep in mind that modifying this benchmark will require additional testing and analysis to ensure accurate results.

Related benchmarks:

json stringify vs array tostring base64 (version: 0)

Comparing performance of: to base64 string vs json stringify

Created: 4 years ago by: Guest

Jump to the latest result

to base64 string

json stringify

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):