function solve(arr) { const terms = {}; for (const line of arr) { const [currentWord, currentDefinition] = Object.entries(JSON.parse(line))[0]; terms[currentWord] = currentDefinition; } [...Object.entries(terms)].sort((a, b) => a[0].localeCompare(b[0])).forEach(el => { console.log(`Term: ${el[0]} => Definition: ${el[1]}`); }) }