In Kotlin or Java, I have a list of items that have an ID property. This list is generated based on another list. Now I get a List of mentioned list items and I want to select all items in the parent list, selecting by ID equality.
Is there a more elegant way than just iterating the parent lost for each derived item? Thank you :)

I'm trying to get into Full stack web development, coming from 1.5 years of Android development. During my studies tried out Backbone with Node once and played with Angular, hated it though.

As this is already some time ago, I was wondering which Tech Stack you would consider being

a) Beginner friendly
b) also ready for use in business?

I recently learnt Kotlin and am quite happy with it, I'd like to go deeper on that. Also, the company I'm hoping to work for talked about Drop Wizard, Spring, Vue, Angular and React.

Curious to hear your thoughts, Thank you :)