promise-basic.js

log('Waiting one second');
wait(1000)
    .then(() => log('I waited for one second'))
    .catch((err) => log('Something went wrong' + err));
log('Meanwhile checking twitter');
 
function wait(ms) {
    return new Promise((resolve, reject) => {
        log('Inside Promise ---> Started waiting')
        setTimeout(() => resolve(), ms);
    });
}