curry-example.js

"use strict";

var R = require("ramda");

var hackerrankResults = [
  {hackerrank: 90,  name: "Maria",  category: "Frontend", vetted: true,  rate: "1000"},
  {hackerrank: 20,  name: "Maria",  category: "Frontend", vetted: true,  rate: "1000"},
  {hackerrank: 100, name: "Maria",  category: "Frontend", vetted: true,  rate: "1000"},
  {hackerrank: 100, name: "Galina", category: "Frontend", vetted: true,  rate: "2000"},
  {hackerrank: 95,  name: "Olga",   category: "Frontend", vetted: true,  rate: "3000"},
  {hackerrank: 65,  name: "Ira",    category: "Frontend", vetted: true,  rate: "3000"},
  {hackerrank: 100, name: "Vika",   category: "Frontend", vetted: false, rate: "1000"},
  {hackerrank: 100, name: "Nadya",  category: "Backend",  vetted: false,  rate: "1000"},
];

//let isVetted = function(user) {return user.vetted};
let isVetted = R.propEq("vetted", true);
let isCategoryAsDefined = category => R.propEq("category", category);

//let result = R.filter(isFrontend, hackerrankResults);
let result = R.pipe(
  R.filter(R.allPass([isVetted, isCategoryAsDefined("Backend")]))
)(hackerrankResults);

console.log('result:', result);


// Try to do
// 1. create isCategoryAsDefined predicate function
// 2. Try to remove double looping in example above