Javascript Programming Tutorials, Guides & Best Practices

function makeCounter() {
    let count = 0;

    return function() {
        count++;
        return count;
    };
}

const counter = makeCounter();
console.log(counter()); // Output: 1
console.log(counter()); // Output: 2

These advanced topics are essential for developers looking to refine their skills and write more robust, maintainable code.