Function composition that takes some ms, converts it to hours, check if there are more than one, rounds it and postfixes it with an 'h'

asHours.js

import {compose, curry} from "ramda";
// Take a function and a value, return the function with the applied value if the value is evaluated as true
const falseOr = curry((fn, value) => value && fn(value));
// Take a function and a value, return the value if the function returns true
const valueIf = curry((fn, value) => fn(value) && value);
// Take a duration in ms and convert it to either Hours, minutes or seconds;
const msToHours = (duration) => duration / 60 / 60 / 1000;
// Check if a value evaluates to true and if it is over one
const overOne = (value) => isNumber(value) && value > 1;
// Postfix function that takes a postfix and a value and adds it to the back of the value
const addPostFix = curry((postfix, value) => `${value}${postfix}`);
const postFixHours = addPostFix('h');
// The compositions. Take a value, convert it to a specific unit, check if its over one, round it and postfix it.
const asHours = compose(falseOr(postFixHours), falseOr(Math.round), valueIf(overOne), msToHours);