The Discriminated unions or tagged unions are a pattern consisting of a common literal type property (Discriminant Property), Union types, Type aliases & Type guards.
Discriminated Unions / Tagged Unions in TypeScript Read More »
A typeOf keyword returns the type of an identifier in TypeScript. It also acts as a Type Guard narrowing the Type in the scope where we use it.
instanceof is a type Guard, which checks if a value is an instance of a class or a constructor function. It also acts as a Type Guard, helping us the infer the type correctly in the scope
Union Types in Typescript allows a variable to have the ability to store a value of several types. We define union types by using a pipe- (|) to separate each of the possible types. Hence, number | string | boolean is the type of a variable, which can have the value that can be a number, a string, or a boolean.
TypeScript Literal Types restrict the value of a variable to finite valid values. The latest version of Typescript supports the following Literal Types. String Literal Types,Numeric Literal Types,Boolean Literal Types & Enum Literal Types. This is very useful feature which restrict the possible values, that you can store in a variable
Typescript String, Boolean, Number & Enum Literal types Read More »
