CurryOn

CurryOn enhances your functional codebase by allowing you to map the input and output of curried functions. It provides a clean and efficient way to transform functions and their results.

Installation

Install via npm:

npm install curry-on

Usage

Basic Usage

To use CurryOn, import it and pass your base function to it. You can then use mapInput and mapOutput to transform the function's input and output.

import { CurryOn } from 'curry-on'

// Define a curried function
const curryAdd = (a: number) => (b: number) => a + b

// load curried function
const add4 = curryAdd(4)

// Enhance the function with CurryOn
const add6 = CurryOn(add4).mapOutput(result => result + 2)

// Usage
const result = add6(2) // Output: 8

Mutating Return Type

You can use mapOutput to change the return type of your function. Here's an example where the output is transformed to a string:

import { CurryOn } from 'curry-on'

// Define a curried function
const curryAdd = (a: number) => (b: number) => a + b

// load curried function
const add4 = curryAdd(4)

// Enhance the function with CurryOn and mutate the return type
const addAndFormat = CurryOn(add4).mapOutput(result => `The result is: ${result}`)

// Usage
const result = addAndFormat(2) // Output: "The result is: 6"

API

all methods returns an instance of CurryOn invokable as rootFunction

CurryOn(rootFunc)

Enhances the given function with mapOutput and mapInput methods.

Parameters:

• rootFunc: The function to be enhanced.

instance.mapOutput(mapOutputCb)

Maps the output of the enhanced function to a new result type using the provided callback.

Parameters:

• mapOutputCb: A function that map the result of the enhanced function.

Returns:

• A new CurryOn instance with the output mapping applied.

instance.mapInput(mapInputCb)

Maps the input parameters of the enhanced function using the provided callback.

Parameters:

• mapInputCb: A function that map the input parameters of the enhanced function.

Returns:

• A new CurryOn instance with the input mapping applied.