generator-example.js

/* Simple example of generator function in javascript */
let timer;
function* generatorFn() {
        let iterations = 0;
        let done = false
        while(!done) {
                console.log(`I've run ${iterations} times!`);
                iterations += 1;
                if (iterations === 6) {
                        done = true;
                }
                yield;
        }
        clearInterval(timer);
        console.log('All done!');
}

const generator = generatorFn();

timer = setInterval(() => {
        generator.next();
}, 1000);