compose example

compose.js

//Ramda
const R = require('ramda');

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});
const givePropCurry = R.curry(giveProp);
const giveName = givePropCurry('name');
const giveJob = givePropCurry('job');
const giveHero = givePropCurry('hero');

const giveJobSmuggler = giveJob('smuggler')
//=> returns a curried function that
//takes an object as an argument and
//returns the a copy with property ['job'] = 'smuggler'

const solo = {name: 'Han'};
const soloSmuggler = giveJobSmuggler(solo);
//=> { name: 'Han', job: 'smuggler' }