TypeScript Advanced Types

Advanced types and utility functions for TypeScript.

Usage

$ npm install --save ts-advanced-types

See index.ts for full reference.

Utility types

• Without<T, U> Remove all properties from T that are assignable to U
• TypeXOR<T, U> XOR of two types

Basic types

• Falsy JavaScript falsy types
• PrimitiveValidIndexSignature JavaScript primitive types accepted as index signatures
• Primitive JavaScript primitive non-falsy types
• Complex JavaScript non-falsy types
• FalsyOrLiteral JavaScript primitive types, including falsy values
• Document<T = Complex> An object made of string keys and non-falsy values. To add new types to values, use the T type parameter.
• JsonOrString A JSON, as a string or as a parsed object or array

Advanced types/classes

• TreeItem<T> A generic tree
• EmptyConstructorOf<T> A type that implements a constructor without arguments
• ClonableType<T> A type that is clonable: it can be instantiated with a partial object

Utility functions

• isFalsyOrSpaces(value) Check if a value is falsy or a string with only spaces, ignoring number 0
• withoutProps(obj, ...props) Clones an object, optionally removing a list of properties
• equals(a, b) Checks if two objects are equal using the equals method or strict equality
• getMethods(obj) List all methods of an object and its prototypes