Benchmark: JSON.stringify VS Number.toString

Tests:

JSON.parse
JSON.stringify(1000)
parseInt
(1000).toString()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON.parse
parseInt

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Browser/OS: Chrome 110 on Linux

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Test name	Executions per second
JSON.parse	7030114.5 Ops/sec
parseInt	182308240.0 Ops/sec

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

LLMs can make mistakes. Check important info.

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

**What is being tested?**

The benchmark measures the performance difference between two approaches:

1. `JSON.stringify` (and its inverse, `JSON.parse`) for converting numbers to strings and vice versa.
2. `(number).toString()` (and its inverse, `parseInt`) for converting numbers to strings and vice versa.

**Options compared:**

There are four options being compared in this benchmark:

A) `JSON.stringify(number)`
B) `(number).toString()`
C) `JSON.parse(string)` (converting a string back to a number)
D) `parseInt(string)` (converting a string back to a number)

**Pros and Cons of each approach:**

**A) `JSON.stringify(number)`:**

* Pros:
	+ Widely supported across JavaScript engines.
	+ Returns a string representation of the number in a compact format.
* Cons:
	+ Can be slower than other methods due to the overhead of serializing and deserializing data.
	+ May not be suitable for large numbers or very small numbers (due to precision issues).

**B) `(number).toString()`:**

* Pros:
	+ Fast and lightweight, as it simply returns a string representation of the number using the `ToString` method.
	+ Suitable for large numbers or very small numbers.
* Cons:
	+ May not be supported in older JavaScript engines or browsers that don't implement the `ToString` method.

**C) `JSON.parse(string)`:**

* Pros:
	+ Fast and lightweight, as it uses the built-in `Parse` function to convert a string back to a number.
	+ Suitable for converting strings back to numbers.
* Cons:
	+ May not be supported in older JavaScript engines or browsers that don't implement the `Parse` method.

**D) `parseInt(string)`:**

* Pros:
	+ Fast and lightweight, as it uses the built-in `ParseInt` function to convert a string back to a number.
	+ Suitable for converting strings back to numbers.
* Cons:
	+ May not be supported in older JavaScript engines or browsers that don't implement the `ParseInt` method.

**Libraries used:**

There are no libraries explicitly mentioned, but it's worth noting that `JSON.parse()` and `JSON.stringify()` rely on the built-in JSON parser and stringifier functions provided by the JavaScript engine.

**Special JS feature/syntax:**

This benchmark doesn't use any special JavaScript features or syntax, other than the standard `number` type and the `.toString()` method.

**Other alternatives:**

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

* For converting numbers to strings:
	+ Using the `Number.prototype.toString()` method with a radix argument (e.g., `(123).toString(16)`)
	+ Using a custom implementation of string representation for numbers
* For converting strings back to numbers:
	+ Using the `eval()` function with a carefully crafted string
	+ Using a regular expression with the `replace()` method

Keep in mind that these alternatives may have different performance characteristics and may not be supported across all JavaScript engines or browsers.

In conclusion, this benchmark provides a straightforward comparison of four common approaches for converting numbers to strings and vice versa. The results can help identify which approach is fastest and most reliable across various platforms.

Related benchmarks:

JSON.stringify VS Number.toString (version: 0)

Comparing performance of: JSON.parse vs parseInt

Created: one year ago by: Guest

Jump to the latest result

JSON.parse

parseInt

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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