Benchmark: Deep merge lodash vs ramda vs deepmerge vs native shallow merge

Deep merge lodash vs ramda vs deepmerge vs native shallow merge (version: 0)

Merging two array of objects with nested objects and methods. Comparing speed between the different libraries and vanilla shallow merge using destructuring.

Comparing performance of: Ramda.mergeDeepRight vs Lodash.merge vs deepmerge vs shallow merge with destructuring

Created: 2 years ago by: Guest

Jump to the latest result

HTML Preparation code:

<script src="//cdn.jsdelivr.net/npm/ramda@latest/dist/ramda.min.js"></script>
<script src="https://raw.githubusercontent.com/lodash/lodash/4.17.15-npm/lodash.js"></script>
<script src="https://unpkg.com/deepmerge/dist/umd.js"></script>

Script Preparation code:

var obj1 = [
	{
		"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" }
			],
         "sayILoveDonut": function(){ console.log("I love cookie")}
	},
]

var obj2 = [
	{
		"id": "0001",
		"type": "donut",
		"name": "Cake",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Overwritten" },
						{ "id": "1002", "type": "Chocolate" },
						{ "id": "1003", "type": "Overwritten" },
						{ "id": "1004", "type": "Devil's Food" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "Overwritten" },
				{ "id": "5002", "type": "Overwritten" },
				{ "id": "5005", "type": "Sugar" },
				{ "id": "5007", "type": "Powdered Sugar" },
				{ "id": "5006", "type": "Chocolate with Sprinkles" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Overwritten" }
			]
	},
	{
		"id": "0002",
		"type": "Overwritten",
		"name": "Raised",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Overwritten" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "None" },
				{ "id": "5002", "type": "Overwritten" },
				{ "id": "5005", "type": "Sugar" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Maple" }
			]
	},
	{
		"id": "0003",
		"type": "Overwritten",
		"name": "Old Fashioned",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Overwritten" },
						{ "id": "1002", "type": "Chocolate" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "None" },
				{ "id": "5002", "type": "Glazed" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Maple" }
			]
	}
]

Tests:

Ramda.mergeDeepRight
R.mergeDeepRight(obj1, obj2)
Lodash.merge
_.merge(obj1, obj2)
deepmerge
deepmerge(obj1, obj2)
shallow merge with destructuring
[...obj1, ...obj2]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Ramda.mergeDeepRight
Lodash.merge
deepmerge
shallow merge with destructuring

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/104.0.0.0 Safari/537.36

Browser/OS: Chrome 104 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Ramda.mergeDeepRight	466485.1 Ops/sec
Lodash.merge	82616.1 Ops/sec
deepmerge	51409.7 Ops/sec
shallow merge with destructuring	7216425.5 Ops/sec

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

LLMs can make mistakes. Check important info.

It seems like we have a lot of data here!

To summarize, we have:

1. A JSON string with nested objects and arrays representing some kind of data (e.g., flavors, toppings) with their corresponding Ramda, Lodash, and deepmerge implementation benchmarks.
2. Individual test cases for each benchmark implementation.
3. The latest benchmark results in a format that includes browser information, device platform, operating system, executions per second, and the corresponding test name.

To provide a helpful answer, I'd like to ask some clarifying questions:

1. What is the goal of these benchmarks? Are they comparing performance characteristics of different implementation libraries (Ramda, Lodash, deepmerge) in specific scenarios?
2. Do you have any specific requirements or constraints for answering this question (e.g., choosing a library, considering specific use cases)?

Assuming I understand the context correctly, I can attempt to provide insights on:

* Comparing performance characteristics of Ramda, Lodash, and deepmerge.
* Providing guidance on choosing an implementation library based on performance considerations.

Please let me know if you'd like more information or clarification!

Related benchmarks:

Deep merge lodash vs ramda vs deepmerge vs native shallow merge (version: 0)

Merging two array of objects with nested objects and methods. Comparing speed between the different libraries and vanilla shallow merge using destructuring.

Comparing performance of: Ramda.mergeDeepRight vs Lodash.merge vs deepmerge vs shallow merge with destructuring

Created: 2 years ago by: Guest

Jump to the latest result

Ramda.mergeDeepRight

Lodash.merge

deepmerge

shallow merge with destructuring

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):