Benchmark: json stringify vs array tostring - preprepped data

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([], Math.floor(Math.random() * 1023) + 1); }
var testData = [];
for(let i = 0; i < 10000; i++) testData[i] = makeTestData();

Tests:

toString
JSON.stringify(testData[0]);
JSON.stringify
testData[0].toString();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
toString
JSON.stringify

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is being tested?**

The provided JSON represents a benchmark test case, which compares two approaches for converting an array to a string: `JSON.stringify()` and the `.toString()` method. The test data is generated using a custom function `moreData()`, which creates an array of arrays by pushing random numbers onto it.

**Options being compared**

Two options are being compared:

1. **`JSON.stringify()`**: This method converts a JavaScript object (in this case, an array) to a JSON string.
2. **`.toString()`**: This method is called on the array itself, which will return a string representation of the array's contents.

**Pros and Cons**

* `JSON.stringify()`:
	+ Pros: widely supported across browsers and Node.js versions, can handle complex data structures like arrays.
	+ Cons: may not be as efficient for large datasets, can introduce unnecessary overhead due to the JSON format conversion.
* `.toString()`:
	+ Pros: typically faster than `JSON.stringify()`, as it only needs to serialize the array's elements without converting them to a full-fledged JSON object.
	+ Cons: might behave differently across browsers and Node.js versions, may not handle complex data structures well.

**Library usage**

The test case uses the `Math.random()` function, which is a built-in JavaScript function used for generating random numbers. No external library is required.

**Special JS feature/syntax**

There's no special JavaScript feature or syntax being tested in this benchmark. The focus is on comparing two existing methods for converting arrays to strings.

**Other alternatives**

If you were to test other approaches, some possible alternatives could be:

* Using a custom serialization function, like `lodash.string` (which is not included in the provided JSON).
* Converting the array to a string using a template literal (`toString()` with template literals).
* Using a third-party library like `json-stringify-safe` or `array-to-json`.

Keep in mind that these alternatives might introduce additional complexity and may not be as widely supported as the original methods being compared.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser/OS: Chrome 87 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
toString	194613.4 Ops/sec
JSON.stringify	94030.0 Ops/sec

Related benchmarks:

json stringify vs array tostring - preprepped data (version: 0)

Comparing performance of: toString vs JSON.stringify

Created: 5 years ago by: Guest

Jump to the latest result

toString

JSON.stringify

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):