Benchmark: json stringify vs object tostring AA

Script Preparation code:

function makeTestData() { return { name: "Matheus de Sousa Martins", age: 30, phone: "999999999999" }; }

Tests:

toString
[makeTestData()].toString()
Join
[makeTestData()].join('_');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
toString
Join

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
toString	10049647.0 Ops/sec
Join	13910429.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into explaining the benchmark.

**What is being tested?**

MeasureThat.net is testing two different approaches for string representation of objects in JavaScript: `toString()` and `join('_')`. The test cases are designed to compare the performance of these two methods on a specific dataset, which is generated by the "makeTestData()" function. This function returns an object with three properties: "name", "age", and "phone".

**Options compared**

The two options being compared are:

1. **toString()**: This method converts the entire object to a string using its own implementation.
2. **join('_')**: This method splits the object into individual property names and values, joins them with an underscore ('_'), and returns the resulting string.

**Pros and Cons of each approach:**

1. **toString():**
	* Pros:
		+ Can be more readable for simple objects, as it preserves the original property names.
	* Cons:
		+ Can lead to longer strings for larger objects, which may impact performance when working with large datasets.
2. **join('_')**:
	* Pros:
		+ Typically faster than `toString()`, especially for larger objects, since it doesn't involve creating a new string.
	* Cons:
		+ May not be as readable as `toString()`, as the underscore separator may not be immediately clear.

**Library and purpose**

There is no specific library used in this benchmark. The `join()` method is a built-in JavaScript function that has been part of the language since its inception.

**Special JS feature or syntax**

None mentioned in the provided information. However, it's worth noting that the `toString()` method uses the `String.prototype.toString()` implementation, which can be influenced by various factors such as the browser, version, and platform.

**Other alternatives**

If you're looking for alternative string representation methods in JavaScript, consider the following:

1. **JSON.stringify()**: This method converts an object to a JSON string, which is often used for serialization and deserialization purposes.
2. **Array.prototype.join() with custom separator**: You can use this method if you need more control over the string representation of your object's properties.

Keep in mind that these alternatives may have their own trade-offs and performance characteristics compared to `toString()` and `join('_')`.

Related benchmarks:

json stringify vs object tostring AA (version: 0)

Abc

Comparing performance of: toString vs Join

Created: 2 years ago by: Guest

Jump to the latest result

toString

Join

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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