Benchmark: set by path recursive vs while loop v2

Script Preparation code:

var user = {
    id: 1,
    email: 'bob@somewhere.com',
    personalInfo: {
        name: 'Robert',
        address: {
            road: 'Quartier Djinageryber',
            city: 'Timbuktu',
            country: 'Mali'
        }
    }
}

function setByPathWhile (keys, value, source) {
  let [currKey, nextKey] = keys
  let node = source
  let i = 1

  while (nextKey !== undefined) {

    if (!{}.hasOwnProperty.call(node, currKey)) {
      node[currKey] = isNaN(nextKey) ? {} : []
    }

    node = node[currKey]
    currKey = keys[i] 
    nextKey = keys[++i]
  }

  node[currKey] = value

  return source
}

function setByPath ([key, nextKey, ...restOfKeys], value, source) {

  source[key] = (nextKey !== undefined)
    ? setByPath(
      [nextKey, ...restOfKeys],
      value,
      ({}.hasOwnProperty.call(source, key))
      	? source[key]
      	: isNaN(nextKey) ? {} : []
    )
  	: value

  return source
}

Tests:

set by path recursive
setByPath(['personalInfo', 'hobbies', 0], 'jogging', user)
set by path while loop
setByPathWhile(['personalInfo', 'hobbies', 0], 'jogging', user)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
set by path recursive
set by path while loop

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser/OS: Chrome 103 on Windows

View result in a separate tab

Test name	Executions per second
set by path recursive	497788.4 Ops/sec
set by path while loop	724137.8 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is testing two different approaches to set values in an object using the `setByPath` function.

1. **Recursive Approach (`setByPathWhile`)**: This approach uses a while loop to navigate through the object properties recursively.
2. **Iterative Approach (`setByPath`)**: This approach uses an array of keys and iterates over them to set values in the object.

**Options being compared**

The two options being compared are:

1. `setByPathWhile`
2. `setByPath`

**Pros and Cons of each approach:**

1. **Recursive Approach (`setByPathWhile`)**:
	* Pros:
		+ Can handle complex path expressions with nested objects.
		+ Might be more readable for developers familiar with recursive functions.
	* Cons:
		+ May have performance overhead due to the use of a while loop and function calls.
		+ Could lead to stack overflow errors for very deep path expressions.
2. **Iterative Approach (`setByPath`)**:
	* Pros:
		+ Generally more efficient than recursive approaches, as it avoids function call overhead.
		+ Can handle large path expressions without risk of stack overflow.
	* Cons:
		+ Might be less readable for developers unfamiliar with array manipulation and key iteration.

**Library used in the test case**

The `setByPath` function is a custom implementation, but its purpose can be inferred from its usage. It appears to provide a convenient way to set values in an object using a path-like syntax. The library provides a way to recursively navigate through objects and set values at specific locations.

**Special JS feature or syntax used**

There are no special JavaScript features or syntaxes explicitly mentioned, but the use of `isNaN` to create empty arrays or objects is a common pattern in JavaScript. It's likely that this is just a convention used by the author of the `setByPath` function.

**Other alternatives**

For similar benchmarks, you might see other approaches such as:

1. Using a library like Lodash or Ramda for functional programming.
2. Implementing a custom recursive or iterative approach using JavaScript's built-in data structures (e.g., arrays, objects).
3. Utilizing web worker threads to parallelize the execution of multiple iterations.

Keep in mind that these alternatives might not be directly comparable to the `setByPath` implementation, as they may have different performance characteristics or requirements for readability and maintainability.

Related benchmarks:

set by path recursive vs while loop v2 (version: 0)

Comparing performance of: set by path recursive vs set by path while loop

Created: 2 years ago by: Guest

Jump to the latest result

set by path recursive

set by path while loop

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):