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TypeScript Essentials: Crafting Simple Types
- TypeScript is a highly expressive language that allows writing algorithms using types alone but has limitations like maximum tuple length.
- Node.js developers handle TypeScript for types and JavaScript for values, requiring strict definition of custom types for full utilization.
- TypeScript includes string, number, boolean as primitive types, with any being the default when no type is specified.
- Literal types in TypeScript allow for more specific type expressions, such as 'hello world' or the number 10.
- TypeScript distinguishes between undefined and null types, helping differentiate between explicitly set and unspecified properties.
- The never type in TypeScript represents an empty set, with unique behavior when used in conditional types.
- Union types in TypeScript allow for combining types using the pipe symbol, while intersection types represent common elements using '&'.
- Generic types in TypeScript enable writing complex types concisely by defining types with parameters, offering flexibility in type definitions.
- Conditional types in TypeScript allow for branching based on type conditions, with the infer keyword inferring types based on conditions.
- The as keyword in TypeScript is used for explicit type assertion, especially in scenarios where the compiler needs help identifying types.
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