Introduction to TypeScript. Special TypeScript data types

Short summary

TypeScript tutorial covering arrays, tuples, enums, literal types, and special types (any/unknown). Arrays and tuples enforce element types for compile-time type safety. Enums provide named constant collections with specific values, preventing invalid assignments unlike plain objects. Literal types restrict variables to exact values; optional properties enable flexible object typing. The unknown type safely handles uncertain types via runtime checks, unlike any which bypasses checking entirely.

• •Arrays and tuples enforce element type safety at compile time
• •Enums create type-safe named constants, preventing invalid assignments that plain objects would allow
• •Use unknown instead of any for uncertain types—it requires runtime type checks before operations

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