array-object-duplicate-remover.js

const sampleData = [
    { id: 1, title: "Learn JavaScript", desc: "Master the basics of JavaScript." },
    { id: 2, title: "Learn HTML", desc: "Master the basics of HTML." },
    { id: 3, title: "Learn CSS", desc: "Master the basics of CSS." },
    { id: 4, title: "Learn JavaScript", desc: "Master the basics of JavaScript." },
    { id: 5, title: "Responsive Design", desc: "Create designs that adapt to any screen." },
    { id: 6, title: "Flexbox Guide", desc: "Learn how to use Flexbox for layouts." },
    { id: 7, title: "Grid Layout", desc: "Learn CSS Grid for advanced layouts." },
    { id: 8, title: "Responsive Design", desc: "Create designs that adapt to any screen." },
    { id: 9, title: "Web Accessibility", desc: "Make your websites accessible to everyone." },
    { id: 10, title: "SEO Basics", desc: "Improve your website's search engine ranking." },
    { id: 11, title: "Learn JavaScript", desc: "Master the basics of JavaScript." },
    { id: 12, title: "Git & GitHub", desc: "Version control and collaboration tools." },
    { id: 13, title: "React Basics", desc: "Build interactive UIs with React." },
    { id: 14, title: "Node.js Intro", desc: "Learn server-side JavaScript with Node.js." },
    { id: 15, title: "CSS Animations", desc: "Bring your website to life with animations." },
    { id: 16, title: "Flexbox Guide", desc: "Learn how to use Flexbox for layouts." },
    { id: 17, title: "Web Accessibility", desc: "Make your websites accessible to everyone." },
    { id: 18, title: "React Basics", desc: "Build interactive UIs with React." },
    { id: 19, title: "API Integration", desc: "Connect your app to external services." },
    { id: 20, title: "Learn HTML", desc: "Master the basics of HTML." },
    { id: 21, title: "Node.js Intro", desc: "Learn server-side JavaScript with Node.js." },
    { id: 22, title: "SEO Basics", desc: "Improve your website's search engine ranking." }
];

function removeDuplicateTitles(array) {
    const seen = new Set();
    return array.filter(item => {
        if (seen.has(item.title)) {
            return false; // Skips duplicate
        } else {
            seen.add(item.title);
            return true; // Keep the 1st occurences
        }
    })
}

console.log(removeDuplicateTitles(sampleData));