Benchmark: json stringify vs string tostring

Script Preparation code:

function makeTestData() { return 'parentId' }

Tests:

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

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

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser/OS: Chrome 132 on Windows

View result in a separate tab

Test name	Executions per second
toString	81478064.0 Ops/sec
JSON.stringify	11206178.0 Ops/sec

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 its options.

**Benchmark Definition**

The benchmark is comparing two JavaScript methods: `toString()` and `JSON.stringify()`. The purpose of this benchmark is to measure which method is faster for converting an object to a string in JavaScript.

**Options being compared**

There are two options being compared:

1. **`toString()`**: This method converts the object to a string using the built-in `toString()` method.
2. **`JSON.stringify()`**: This method converts the object to a JSON-formatted string using the built-in `JSON.stringify()` function.

**Pros and Cons**

* **`toString()`**:
	+ Pros: Generally faster, as it doesn't require parsing or formatting the object into a string. It's also more lightweight.
	+ Cons: May not produce a human-readable string representation of the object, especially if the object contains complex data structures like arrays or objects.
* **`JSON.stringify()`**:
	+ Pros: Produces a human-readable string representation of the object, which can be useful for debugging or logging purposes. It also handles complex data structures correctly.
	+ Cons: Generally slower than `toString()`, especially for large objects, as it requires parsing and formatting the object into a JSON-formatted string.

**Library used**

Neither `toString()` nor `JSON.stringify()` uses any external libraries. They are both built-in JavaScript methods.

**Special JS feature or syntax**

There is no special JavaScript feature or syntax being used in this benchmark. It's a simple comparison of two basic methods.

**Other alternatives**

If you wanted to compare other options, here are some alternatives:

* **`String.prototype.concat()`**: This method concatenates the string representation of multiple objects into a single string.
* **`JSON.stringify()` with custom replacer function**: If you want to customize the formatting of the JSON-formatted string, you can pass a `replacer` function as an argument to `JSON.stringify()`.

Related benchmarks:

json stringify vs string tostring (version: 0)

Comparing performance of: toString vs JSON.stringify

Created: 3 years ago by: Guest

Jump to the latest result

toString

JSON.stringify

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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