@samnarduzzi/lotide/countOnly.js

Lotide proejct containf files, test code files, index, and descriptions for all files

const assertEqual = function(actual, expected) {
  if (actual === expected) {
    console.log(`Assertion passed: ${actual} === ${expected}`);
  } else {
    console.log(`Assertion failed: ${actual} !== ${expected}`);
  }
};



const countOnly = function(allItems, itemsToCount) {
  const results = {};

  for (item of allItems) {
    if (itemsToCount[item]) {

      if (results[item]) {
        results[item] += 1;
      } else {
        results[item] = 1;
        // ternary operator option - results[item] ? results[item] += 1 : results[item] = 1
      }
    }
  }
  return results;
};



// const firstNames = [
//   "Karl",
//   "Salima",
//   "Agouhanna",
//   "Fang",
//   "Kavith",
//   "Jason",
//   "Salima",
//   "Fang",
//   "Joe"
// ];

// const result1 = countOnly(firstNames, { "Jason": true, "Karima": true, "Fang": true, "Agouhanna": false });

// assertEqual(result1["Jason"], 1);
// assertEqual(result1["Karima"], undefined);
// assertEqual(result1["Fang"], 2);
// assertEqual(result1["Agouhanna"], undefined);