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Deep Merge With Business Rules

RetoolMediumCoding00:00
Retool
Your interviewer · Software Engineer
In session
Interviewer

Welcome to your interview for the Software Engineer role at Retool.

The question is on your right: Deep Merge With Business Rules. Take a moment with it first.

Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen. You have three graded attempts to score 7/10 or better.

Only Submit answer is graded - discussion is free practice.

Problem

Write a function that deeply merges two complex configuration objects while handling arrays and null values according to custom business rules.