What are the best practices for structuring large-scale TypeScript projects?
Instruction: Describe strategies for organizing code, managing types, and configuring the TypeScript compiler in large projects.
Context: This question assesses the candidate's experience and strategies in managing complex TypeScript projects, focusing on code organization, modularization, and compiler options for optimal development and maintenance.
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Organize modules around stable domain or feature boundaries, with explicit public APIs and dependency direction. Keep types near the code that owns them unless several consumers need a shared contract. A single global types directory is not required and can become a coupling point.
Choose compiler options for the actual runtime and build tool. Keep strict checking intentional, including when upgrading between compiler versions; TypeScript 6.0 changed several defaults...