Benchmark: RFDC clone vs Lodash cloneDeep vs JSON Parse 123

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/rfdc@1.1.4/index.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.20/lodash.min.js"></script>

Script Preparation code:

var sampleObject = [{
        "id": "0001",
        "type": "donut",
        "name": "Cake",
        "ppu": 0.55,
        "batters": {
            "batter": [{
                    "id": "1001",
                    "type": "Regular"
                },
                {
                    "id": "1002",
                    "type": "Chocolate"
                },
                {
                    "id": "1003",
                    "type": "Blueberry"
                },
                {
                    "id": "1004",
                    "type": "Devil's Food"
                }
            ]
        },
        "topping": [{
                "id": "5001",
                "type": "None"
            },
            {
                "id": "5002",
                "type": "Glazed"
            },
            {
                "id": "5005",
                "type": "Sugar"
            },
            {
                "id": "5007",
                "type": "Powdered Sugar"
            },
            {
                "id": "5006",
                "type": "Chocolate with Sprinkles"
            },
            {
                "id": "5003",
                "type": "Chocolate"
            },
            {
                "id": "5004",
                "type": "Maple"
            }
        ]
    },
    {
        "id": "0002",
        "type": "donut",
        "name": "Raised",
        "ppu": 0.55,
        "batters": {
            "batter": [{
                "id": "1001",
                "type": "Regular"
            }]
        },
        "topping": [{
                "id": "5001",
                "type": "None"
            },
            {
                "id": "5002",
                "type": "Glazed"
            },
            {
                "id": "5005",
                "type": "Sugar"
            },
            {
                "id": "5003",
                "type": "Chocolate"
            },
            {
                "id": "5004",
                "type": "Maple"
            }
        ]
    },
    {
        "id": "0003",
        "type": "donut",
        "name": "Old Fashioned",
        "ppu": 0.55,
        "batters": {
            "batter": [{
                    "id": "1001",
                    "type": "Regular"
                },
                {
                    "id": "1002",
                    "type": "Chocolate"
                }
            ]
        },
        "topping": [{
                "id": "5001",
                "type": "None"
            },
            {
                "id": "5002",
                "type": "Glazed"
            },
            {
                "id": "5003",
                "type": "Chocolate"
            },
            {
                "id": "5004",
                "type": "Maple"
            }
        ]
    }
];


var myCopy = null;

Tests:

Lodash cloneDeep
myCopy = _.cloneDeep(sampleObject);
Json clone
myCopy = JSON.parse(JSON.stringify(sampleObject));
RFDC copy
var clone = rfdc(); myCopy = clone(sampleObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Json clone
RFDC copy

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

**Benchmark Explanation**

The provided benchmark measures the performance of three different methods for creating a deep copy of an object in JavaScript:

1. **RFDC (Recursive Function Call Dictionary) copy**: This method uses a recursive function to create a new object and then copies the properties from the original object to the new one.
2. **Lodash cloneDeep**: This method uses the `cloneDeep` function from the Lodash library, which is a popular utility library for JavaScript.
3. **JSON Parse**: This method uses the `JSON.parse()` function with `JSON.stringify()` to create a deep copy of the object.

**Options Compared**

The three methods are compared in terms of their performance and execution time.

**Pros and Cons**

* **RFDC copy**:
	+ Pros: Simple implementation, can be optimized for small objects.
	+ Cons: Can be slow for large objects due to recursive function calls.
* **Lodash cloneDeep**:
	+ Pros: Optimized for deep copying, handles complex object graphs well.
	+ Cons: Requires the Lodash library, which adds extra overhead.
* **JSON Parse**:
	+ Pros: Fast and efficient, uses built-in JavaScript functions.
	+ Cons: Can only handle objects with primitive values in their properties.

**Library Usage**

The `cloneDeep` function from Lodash is used to create a deep copy of the object. This library provides optimized implementations for common functional programming tasks, including array and object manipulation.

**Special JS Features/Syntax**

None mentioned in this benchmark.

**Other Considerations**

* The benchmark uses Chrome 92 as the testing browser, which may not be representative of all users.
* The benchmark results are averaged over multiple executions per second, which can affect the accuracy of the results.

**Alternatives**

If you're looking for alternative deep copying methods, consider:

* **Object.assign()**: A built-in JavaScript method that creates a shallow copy of an object.
* **Array.prototype.slice()**: Can be used to create a shallow copy of an array or object with primitive values in its properties.
* **lodash.clone()**: Another Lodash function that creates a deep copy of an object, but without the `cloneDeep` function's optimization for complex object graphs.

Related benchmarks:

RFDC clone vs Lodash cloneDeep vs JSON Parse 123 (version: 0)

Comparing performance of: Lodash cloneDeep vs Json clone vs RFDC copy

Created: 4 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Json clone

RFDC copy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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