Benchmark: Lodash _.flow vs flew

Script Preparation code:

const flow = (funcs) => {
  const length = funcs ? funcs.length : 0
  let index = length
  while (index--) {
    if (typeof funcs[index] != 'function') {
      throw new TypeError('Expected a function')
    }
  }
  return function (...args) {
    let index = 0
    let result = length ? funcs[index].apply(this, args) : args[0]
    while (++index < length) {
      result = funcs[index].call(this, result)
    }
    return result
  }
}

const flew = (funcs) => {
  if(funcs.some(func => typeof func != 'function')) {
    throw new TypeError('Expected a function')
  }
  return (...args) => funcs.reduce((arg, fn, index) => index == 0 ? fn(...arg) : fn(arg), args)
}

const div = (_, i) => _ / i
const add = (i, j) => i + j
const mult = (_, i, j) => _ * i
const sous = (_, i) => _ - i

const funcs = [add, div.bind(this, 2), mult.bind(this, 3), sous.bind(this, 10)]

function doFlow() {
	return flow(funcs)(4,6)
}
function doFlew() {
	return flew(funcs)(4,6)
}

Tests:

flow
var flowResult = 0 flowResult = doFlow()
flew
var flewResult = 0 flewResult = doFlew()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
flow
flew

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

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Let's break down the provided JSON benchmark.

**Benchmark Definition**

The benchmark compares two JavaScript functions: `lodash flow` and a custom implementation called `flew`. Both functions are designed to apply multiple functions in sequence, with each function taking its result as an argument.

**Options Compared**

The two options being compared are:

1. **Lodash `_flow`**: A utility function from the Lodash library that applies a sequence of functions to an initial value.
2. **Custom implementation: `flew`**: A custom JavaScript function implemented by the user, which also applies a sequence of functions to an initial value.

**Pros and Cons**

Here's a brief overview of the pros and cons of each approach:

1. **Lodash `_flow`**:
	* Pros:
		+ Well-tested and widely used library.
		+ Provides a clear and concise API for function chaining.
	* Cons:
		+ Adds external dependency (Lodash) to the project.
		+ May be slower due to the overhead of importing a library.
2. **Custom implementation: `flew`**:
	* Pros:
		+ No external dependencies (i.e., it's self-contained).
		+ Can potentially be optimized for performance, as it's implemented in-house.
	* Cons:
		+ Requires more code and maintenance effort compared to using a library.
		+ May not be as clear or concise in its API.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for various tasks, including array manipulation, object manipulation, and functional programming utilities. The `_flow` function is part of this library and allows users to apply multiple functions in sequence to an initial value.

**Custom implementation: `flew`**

The custom implementation `flew` takes a list of functions as input and applies them in sequence to the initial value, using a similar approach to Lodash's `_flow`. However, it does not use any external dependencies (i.e., it's self-contained).

**Special JS feature or syntax: None**

This benchmark does not appear to use any special JavaScript features or syntax that would require additional explanation.

**Other alternatives**

If you wanted to write a similar benchmark, you could also explore other options, such as:

1. **Using a different library**: Other libraries, like Ramda or Liskov's functions, provide similar functionality for function chaining and may be worth considering.
2. **Implementing a custom function**: You could implement a custom function that applies multiple functions in sequence, potentially using a more efficient algorithm than the `flew` implementation.

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

Lodash _.flow vs flew (version: 1)

Compare lodash flow with our custom method

Comparing performance of: flow vs flew

Created: 7 years ago by: Registered User

Jump to the latest result

flow

flew

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):