JavaScript one-line compose (ES6)

compose.js

const compose = (...fns) => fns.reduce((f, g) => (...args) => f(g(...args)))

// Usage : compose functions right to left
// compose(minus8, add10, multiply10)(4) === 42
//
// The resulting function can accept as many arguments as the first function does
// compose(add2, multiply)(4, 10) === 42

thanks your elaborate

Very cool piece of code - I learned a lot from it. Thank you very much for the explanation as well!
I decided to test the expanded version, works like a charm!

const multiply = (x,y) => x*y
const add6 = (x) => x+6
const minus3 = (x) => x-3

// compose(add6, minus3, multiply)(3,10)
const result = ((...arg1) => ((...arg2) => add6(minus3(...arg2)))(multiply(...arg1)))(3,10)
console.log(result) // === 33

You could probably use reduceRight with the additional ...args spread operator