Benchmark: Reduce deserialize vs JSON deserialize

Script Preparation code:

const address_raw = [{ childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }, { childrenIndex: 0 }, { toggleIndex: 1 }, { instanceIndex: 2 }];

const serializeAddressJSON = (address) => JSON.stringify(address);
const serializeAddressReduce = (address) =>
	address.reduce((serialized, point) => {
		const { childrenIndex, toggleIndex, instanceIndex } = point;

		let pointCode;
		if (childrenIndex !== undefined) {
			pointCode = `c${childrenIndex}`;
		}
		if (toggleIndex !== undefined) {
			pointCode = `t${toggleIndex}`;
		}
		if (instanceIndex !== undefined) {
			pointCode = `i${instanceIndex}`;
		}

		return `${serialized}${pointCode}`;
	}, '');

window.addressJSON = serializeAddressJSON(address_raw);
window.addressReduce = serializeAddressReduce(address_raw);

window.deserializeAddressJSON = (address) => JSON.parse(address);

window.deserializeAddressReduce = (serializedAddress) => {
	const pointCodeRegex = /([cti])(\d+)/g;
	const addressPointsMatches = serializedAddress.matchAll(pointCodeRegex);
	const address = [...addressPointsMatches].map(([_match, pointType, index]) => {
		switch (pointType) {
			case 'c':
				return { childrenIndex: +index };
			case 't':
				return { toggleIndex: +index };
			case 'i':
				return { instanceIndex: +index };
		}
	});
	return address;
};

Tests:

JSON deserialize
deserializeAddressJSON(window.addressJSON)
Reduce deserialize
deserializeAddressReduce(window.addressReduce)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON deserialize
Reduce deserialize

Fastest: N/A

Slowest: N/A

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Autogenerated LLM Summary (model gemma2:9b, generated one year ago):

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This benchmark compares two different approaches to deserializing (reconstructing) data from a serialized string representation.

**Options Compared:**

1. **JSON Deserialization (`deserializeAddressJSON`):** This method uses the built-in `JSON.parse()` function in JavaScript to parse the string back into an array of objects. JSON is a widely used standard for representing structured data as text.

2. **Reduce-based Deserialization (`deserializeAddressReduce`):** This method employs a custom JavaScript `reduce()` function to iteratively build the deserialized data structure from the serialized string. It relies on regular expressions to extract specific information (childrenIndex, toggleIndex, instanceIndex) from the string and constructs objects based on this information.

**Pros and Cons:**

* **JSON Deserialization:**
    * **Pros:** 
        * Simple and concise syntax.
        * Well-supported and widely used, with optimized implementations in JavaScript engines.
    * **Cons:** 
        * Can be less flexible if the data structure deviates significantly from a standard JSON format.

* **Reduce-based Deserialization:**
    * **Pros:** 
        * More control over the deserialization process, allowing for custom logic and handling of specific data formats.
        * Potentially more efficient if the serialized string is highly structured and the reduce operation is optimized.
    * **Cons:**
        * Can be more complex to write and maintain compared to JSON parsing.

**Other Considerations:**

* **Performance:** The benchmark results show that JSON deserialization is generally faster than the reduce-based approach in this specific case. However, performance can vary depending on factors such as data size, complexity of the serialized string, and optimization of the `reduce()` implementation.
* **Readability:** JSON deserialization is usually more readable due to its structured nature.

**Alternatives:**

* **Other libraries:** Libraries like `protobuf` or `msgpack` offer efficient serialization/deserialization mechanisms for specific data formats.

Let me know if you have any other questions!

Related benchmarks:

Reduce deserialize vs JSON deserialize (version: 0)

Comparing performance of: JSON deserialize vs Reduce deserialize

Created: 3 years ago by: Registered User

Jump to the latest result

JSON deserialize

Reduce deserialize

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model gemma2:9b, generated one year ago):