Compose & Pipe functions in JavaScript

compose-pipe-js.md

Compose functions in JavaScript

Order - right to left

//compose for multiple functions
const composeMultiple = (f, g) => (...data) => f(g(...data)) //composing 2 functions
const composeFunctions = (...fns) => fns.reduce(composeMultiple)

//or one line
compose = (...fns) => value => fns.reduceRight((v, f) => f(v), value);

Pipe functions in Javascript

Order - left to right

//pipe multiple functions
const pipeMultiple = (f, g) => (...data) => g(f(...data)) //composing 2 functions
const pipeFunctions = (...fns) => fns.reduce(pipeMultiple)

//or one line
pipe = (...fns) => value => fns.reduce((v, f) => f(v), value)

//
pipeDebug = (...functions) => (value) => {
    debugger;
    return functions
        .reduce((currentValue, currentFunction) => {
            debugger;
            return currentFunction(currentValue);
        }, value)
}