Labayh interview questions

What a waste of time. I was contacted by a someone at the company to apply for this job. First interview was a bunch of javascript questions (I didn't do too well). But they sent me a lengthy technical assessment (node.js) on which I spent a fair amount of time (few days). Once I'd submitted the task I asked the developer for some feedback but he gave me a vague answer and said that HR would contact me. I emailed HR and they told me that they were hiring another candidate. When I asked for some feedback (because I had done everything they asked) my email was simply ignored. (I'm doubtful my task was even run because I checked the DB and there were no new records)