4 ms·
I really like the way TypeScript approaches Dynamic world of JS ecosystem with various advance types. https://www.typescriptlang.org/docs/handbook/advanced-typ
by truth_seeker 7y ago
I really like the way TypeScript approaches Dynamic world of JS ecosystem with various advance types.
https://www.typescriptlang.org/docs/handbook/advanced-types.html https://www.typescriptlang.org/docs/handbook/advanced-types....
Intersection Types - An intersection type combines multiple types into one.
Union Types - A union type describes a value that can be one of several types
Type Guards - A type guard is some expression that performs a runtime check that guarantees the type in some scope.
Nullable types - compiler level safety for "can be a null " implication of any type
Type alias - as the name suggests
String literal types - Union type of few string values
Numeric literal types - Union type of few numeric values
Enum Member Types - enum members have types when every member is literal-initialized
Discriminated Unions - You can combine singleton types, union types, type guards, and type aliases
Index Types - you can get the compiler to check code that uses dynamic property names
Mapped Types - Transforms each property in the old type in the same way to create new type.
Conditional Types - selects one of two possible types based on a condition expressed as a type relationship test
- orta 7y agoNice overview! I plan on building a larger version of this into the docs eventually https://github.com/microsoft/TypeScript/issues/31983#issuecomment-503667997 https://github.com/microsoft/TypeScript/issues/31983#issueco...