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Syllabus

Five principles for LLD interviews — SRP through DIP, how they compose, and crisp Q&A.

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The interview

What SOLID is — five guidelines for changeable object design.

  1. 1What is SOLID Design

Principles

One letter at a time: definition, levels, violations, practices, Q&A.

  1. 2Single Responsibility
  2. 3Open/Closed
  3. 4Liskov Substitution
  4. 5Interface Segregation
  5. 6Dependency Inversion

Wrap-up

How the five fit together and answers out loud.

  1. 7How They Fit
  2. 8Interview Questions