Benchmark: JSON.srtingify vs react-fast-compare vs _.isEqual

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/react-fast-compare@3.2.0/index.min.js'></script>

Script Preparation code:

window.a = {
    ab: {
        hello: "user",
        b: {
            aaa: 123,
            b: ["ggg"]
        },
        c: [{
            hj: "123",
            b: {
                h: "zzz"
            }
        }, {
            ll: "12r"
        }]
    },
    azz: [1, 2, 3, 5]
};

window.b = {
    ab: {
        hello: "user",
        b: {
            aaa: 123,
            b: ["ggg"]
        },
        c: [{
            hj: "123",
            b: {
                h: "zzz"
            }
        }, {
            ll: "12r"
        }]
    },
    azz: [1, 2, 3, 568]
};

Tests:

JSON.stringify
JSON.stringify(window.a) === JSON.stringify(window.b);
react-fast-compare
equal(window.a, window.b)
lodash
_.isEqual(a,b)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON.stringify
react-fast-compare
lodash

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
JSON.stringify	3509259.5 Ops/sec
react-fast-compare	21304094.0 Ops/sec
lodash	1171490.9 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to explain the benchmark and its various components.

**Benchmark Overview**

The provided benchmark compares three JavaScript functions for string comparison: `JSON.stringify()`, `react-fast-compare`, and `_.isEqual` from Lodash.

**Options Compared**

1. **JSON.stringify()**: This function converts a JavaScript object into a string, which can be used for comparison.
2. **React Fast Compare**: This is a library that provides a fast and efficient way to compare two objects or arrays.
3. **Lodash _.isEqual**: This is a utility function from the Lodash library that compares two values for equality.

**Pros and Cons of Each Approach**

1. **JSON.stringify()**:
	* Pros: Simple, widely supported, and easy to implement.
	* Cons: May not be suitable for complex objects or arrays due to limitations in its implementation (e.g., it uses a fixed string representation).
	* Consideration: This approach is simple but may not provide accurate results for all cases.
2. **React Fast Compare**:
	* Pros: Fast, efficient, and designed specifically for object comparison.
	* Cons: Requires an external library, which adds overhead.
	* Consideration: This approach is optimized for performance but requires additional setup.
3. **Lodash _.isEqual**:
	* Pros: Robust implementation with support for various data structures (objects, arrays, etc.), robust error handling, and easy to use.
	* Cons: Requires the Lodash library, which adds overhead.

**Library Descriptions**

1. **React Fast Compare**: A lightweight, fast, and efficient JavaScript library designed specifically for comparing two objects or arrays. It provides a simple API for comparison and is optimized for performance.
2. **Lodash _.isEqual**: A utility function from the Lodash library that compares two values for equality. It supports various data structures (objects, arrays, etc.) and provides robust error handling.

**Special JS Features/Syntax**

None mentioned in the provided benchmark definition.

**Other Alternatives**

1. **Array.prototype.every()**: An array method that tests every element in an array against a callback function.
2. **Object.keys().every()**: An object method that tests every key-value pair in an object against a callback function.
3. **DeepEqual()**: A more comprehensive equality test function from the DeepEqual library, designed to handle complex data structures.

These alternatives may offer different trade-offs between performance, simplicity, and robustness compared to the benchmark's current options.

Related benchmarks:

JSON.srtingify vs react-fast-compare vs _.isEqual (version: 0)

Comparing performance of: JSON.stringify vs react-fast-compare vs lodash

Created: 5 years ago by: Guest

Jump to the latest result

JSON.stringify

react-fast-compare

lodash

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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