Enable TypeScript strict mode in tsconfig.json

Without strict mode, TypeScript allows implicit any types, ignores possible null/undefined values, and silently accepts unsound function assignments — meaning the type system gives a false sense of safety. Enabling strict mode makes TypeScript catch the bugs it was designed to prevent, turning type errors into compile-time failures rather than runtime surprises in production.

Quick Reference

• "strict": true enables strictNullChecks, noImplicitAny, and six other checks
• Enable strict from project start — retrofitting a large codebase is painful
• On existing projects: enable strictNullChecks first, then other flags incrementally
• Strict mode eliminates entire classes of null reference and implicit-any bugs

Check

Inspect the tsconfig.json in this project and report whether "strict": true (or individual strict flags) is enabled. List any missing strict flags.

Fix

Add "strict": true to the compilerOptions in tsconfig.json. If the project has existing type errors, explain how to enable strictNullChecks first as a stepping stone.