What is being tested on the provided JSON?

The benchmark tests three different approaches to create a deep copy of an object in JavaScript:

1. Lodash: The cloneDeep function from the Lodash library is used to create a deep copy of the MyObject.
2. Structured Clone API: The structuredClone function, which is part of the WebAssembly (WASM) standard, is used to create a deep copy of the MyObject.
3. JSON Parse: The JSON.parse(JSON.stringify(MyObject)) method is used to create a deep copy of the MyObject. This approach serializes the object to a JSON string, then parses it back into an object.

Options comparison

The benchmark compares the execution time and performance of these three approaches:

• Lodash: The Lodash library provides a robust set of functions for array manipulation, string manipulation, and other utility functions. cloneDeep is specifically designed to create deep copies of objects.
• Structured Clone API: This approach uses the WebAssembly standard's structured clone algorithm to create a deep copy of the object.
• JSON Parse: This approach serializes the object to a JSON string using JSON.stringify(), then parses it back into an object using JSON.parse().

Pros and Cons

Here are some pros and cons for each approach:

• Lodash: Pros:
  • Well-tested and widely used library
  • Supports deep copying of complex objects
  • Can handle a wide range of data types
• Cons:
  • Additional dependency (the Lodash library)
  • May have performance overhead due to the library's complexity
• Structured Clone API:
  • Fast and efficient, with no additional dependencies
  • Specifically designed for WebAssembly, which can lead to better performance
  • However, it may not be as widely supported or tested as other libraries
• JSON Parse: Pros:
  • Lightweight and simple implementation
  • No additional dependencies required
• Cons:
  • May have performance overhead due to the serialization and parsing steps
  • Not specifically designed for deep copying complex objects

Other considerations

• The benchmark results may vary depending on the specific use case, data size, and system configuration.
• The Lodash library provides more features than just cloneDeep, such as array manipulation functions. However, these are not relevant to this specific benchmark.

Library descriptions

• Lodash: A JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and data transformation.
• Structured Clone API: A WebAssembly standard that provides an efficient way to create deep copies of objects. This is not a separate library but rather a part of the WebAssembly standard.

Special JS features or syntax

The benchmark uses the structuredClone function, which is a relatively new feature in JavaScript (introduced in ECMAScript 2021). This function provides an efficient way to create deep copies of objects and is specifically designed for use with WebAssembly.