I applied for the job and hadn't heard any response for months. After receiving an email asking if I was still interested, a screening call was made.

The screening interviewer was really nice. The 30-minute call covered my previous experience and then a run-through of some basic JavaScript questions.

Following the screening call, I proceeded to prepare for a code interview (remote). The suggested preparation material included front-end topics (HTML, CSS, JS) and core computer science subjects (algorithms, design, etc.).

The code interview was one hour and was not with the interviewer suggested by email (a surprise when I called him by the wrong name!). There seemed to be some lag on the call, so conversations weren't fluid. The code questions were core JavaScript questions. There was no compilation or program execution; rather, the focus was on discussing problems within the code and potential solutions.

I did not progress after this stage and was informed the next working day.

Q1: Given the following function works, what are the problems that you can identify? How would you improve on these problems?

javascript const items = [ { type: 'phone', color: 'gold', device: 'Nokia' }, { type: 'phone', color: 'bronze', device: 'iPhone' }, { type: 'tv', color: 'brown', device: 'Sony' } ];

const excludes = [ { k: 'color', v: 'gold' }, { k: 'type', v: 'tv' } ];

function applyFilter(items, excludes) { excludes.forEach(pair => { items = items.filter(item => item[pair.k] !== pair.v); }); return items; }

Q2: How would you construct the Emitter object?

javascript const emitter = new Emitter(); const sub = emitter.subscribe('event_name', callback); const sub2 = emitter.subscribe('event_name2', callback2); const sub3 = emitter.subscribe('event_name3', callback);

emitter.emit('event_name', 'foo', 'bar', 'baz');

sub.release(); sub2.release(); sub3.release();