composePartOne.js

const compose = (...funcs) => {
  if (funcs.length === 0) {
    return (arg) => arg
  }
  
  if (funcs.length === 1) {
    return funcs[0]
  }
}

// No funcs passed 
const composedFunction = compose()
composedFunction === (arg) => arg === function composedFunction (arg) { return arg }

composedFunction(1) //=> echos the argument, so the result would be 1

// One func passed 
const composedFunction = compose((x) => x + 2)
composedFunction === (x) => x + 2  === function composedFunction (x) { return x + 2 }