Design Component Hierarchy | Dataford Interview Questions

Given a specific UI requirement, how would you structure the component hierarchy?

Implement build_component_hierarchy(components) to represent the hierarchy as nested component nodes. Each input component has an id, name, and optional parentId; return root components in input order, with descendants stored in a children array. Preserve the input order among siblings. The input contains valid unique IDs and no cycles.

Constraints

1 <= components.length <= 10^4
Each component has a unique string id
Each component has a string name
parentId is either absent or references another component
The hierarchy contains no cycles

Function Signature

def build_component_hierarchy(components):

Your question is Design Component Hierarchy. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Given a specific UI requirement, how would you structure the component hierarchy?

Constraints

1 <= components.length <= 10^4
Each component has a unique string id
Each component has a string name
parentId is either absent or references another component
The hierarchy contains no cycles

Function Signature

def build_component_hierarchy(components):

Your question is Design Component Hierarchy. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.