Dropbox - [Frontend Engineer] - Phone Screen

Interview Experience
1

Level: Mid-Level
Education: BA CS
Years of Experience (YOE): 4
Questions Asked:
Custom DOM Traversal:
Function Signature: getElementsByClassnameHierarchy(root, 'a>b>c')
Description:

  • Find all elements with class c
  • Ensure their parent has class b, and their grandparent has class a
  • Traverse the DOM accordingly and return matching nodes

Tags:
Dropbox, Frontend Engineer, Phone Screen