The major difference between functions in TypeScript/JavaScript and other languages is that, in TypeScript/JavaScript, a function is just something that a variable can hold.

TypeScript offers support for the latest and evolving JavaScript features, including those from ECMAScript 2015 and future proposals, such as async functions and decorators, to help build robust ...

A pure function is a function where the return value is only determined by its input values, without observable side effects. They're easier to reason about, easier to combine, easier to test, easier ...

This library extracts the calculation logic from saga-calculations into a separate, reusable module built with functional programming principles. It provides immutable data structures and pure ...

Using higher-order functions and closures together creates returned functions that are pure. I would not recommend using this unless you have a grasp of using basic pure functions in general though.

Generic classes and functions are one way to create flexible, reusable classes and functions. But before you start creating your own generic functions, you should be clear on when they’re your best ...

The road map for TypeScript calls for such capabilities as ES6 Generators, which provide a syntactic way to declare a function that can yield, in TypeScript 1.6.