Benchmark: Json vs Url Params parsing.

Script Preparation code:

var query = 'test=1&test=2&alt=test&b=8&c=9&alt=9';
var body = '{"test": [1, 2], "alt": ["test",9], "b":8,"c": 9}';

Tests:

Object.entries with URLSearchParams
var result = Object.fromEntries(new URLSearchParams(query));
Json Parse
var result = JSON.parse(body);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.entries with URLSearchParams
Json Parse

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 OPR/119.0.0.0

Browser/OS: Opera 119 on Windows

View result in a separate tab

Test name	Executions per second
Object.entries with URLSearchParams	233807.1 Ops/sec
Json Parse	2416299.0 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 JSON and explain what is tested in the benchmark.

**Benchmark Purpose**
The benchmark compares the performance of two approaches for parsing data:

1. **JSON Parsing**: Using `JSON.parse()` to parse a JSON object from a string (`body` variable).
2. **URL Parameters Parsing**: Using `Object.entries()` with `URLSearchParams` to parse URL parameters from a query string (`query` variable).

**Options Comparison**

* **JSON Parsing (Object.fromEntries)**: This method creates a new array of key-value pairs from the JSON object. It's a more modern and concise way to parse JSON.
* **URL Parameters Parsing (Object.entries with URLSearchParams)**: This approach uses the `URLSearchParams` API to parse the query string into an object, which can then be used with `Object.entries()` to extract the individual key-value pairs.

**Pros and Cons**

* **JSON Parsing (Object.fromEntries)**:
	+ Pros: More concise and modern syntax.
	+ Cons: May not be supported in older browsers or environments.
* **URL Parameters Parsing (Object.entries with URLSearchParams)**:
	+ Pros: Works in more environments, including older browsers.
	+ Cons: Requires using the `URLSearchParams` API, which may add overhead.

**Library Usage**
The benchmark uses the `URLSearchParams` library to parse the query string. This is a built-in browser API that's widely supported across different devices and browsers.

**Special JS Feature/Syntax (None)**

There are no special JavaScript features or syntax used in this benchmark.

**Other Alternatives**

If you wanted to use alternative methods for parsing JSON or URL parameters, some options could be:

* For JSON Parsing:
	+ `JSON.parse()` (similar to the current approach)
	+ `eval()` (not recommended due to security concerns)
* For URL Parameters Parsing:
	+ Using a library like jQuery's `.param()` method
	+ Implementing custom parsing logic using regular expressions

Keep in mind that these alternatives may have different performance characteristics, and some may not be supported in older browsers or environments.

Overall, the benchmark provides a useful comparison between two common approaches for parsing data, allowing users to determine which method performs better in their specific use case.

Related benchmarks:

Json vs Url Params parsing. (version: 0)

Compares the performance of parsing data send in the body as json vs data send in the url as params.

Comparing performance of: Object.entries with URLSearchParams vs Json Parse

Created: 3 years ago by: Guest

Jump to the latest result

Object.entries with URLSearchParams

Json Parse

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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