Implicitly create a tuple in Typescript

by

With typescript 3.0, you can have your own utility function:

const tuple = <T extends any[]>(...args: T): T => args

And use it this way:

const tup = tuple(1, 2) // tup type is [number, number]

More Related Contents:

  1. How to fix TS2322: “could be instantiated with a different subtype of constraint ‘object'”?
  2. Angular 2 custom form input
  3. How to check the object type on runtime in TypeScript?
  4. TypeScript how to create a generic type alias for a generic function?
  5. What is the syntax for Typescript arrow functions with generics?
  6. How to extend String Prototype and use it next, in Typescript?
  7. Types in object destructuring
  8. Angular 2: Convert Observable to Promise
  9. How to prepare release version with SystemJS and Gulp?
  10. Angular2 canActivate() calling async function
  11. Purpose of declare keyword in TypeScript
  12. How to declare a Fixed length Array in TypeScript
  13. Is it possible to restrict number to a certain range
  14. Higher-order type functions in TypeScript?
  15. Angular 6 View is not updated after changing a variable within subscribe
  16. ESLint – Configuring “no-unused-vars” for TypeScript
  17. Object destructuring with property names that are not valid variable names
  18. How to install Typescript typings for google maps
  19. How to declare a type as nullable in TypeScript?
  20. How to use Object.values with typescript?
  21. is there a way to get all required properties of a typescript object
  22. Typescript: ReturnType of overloaded function
  23. What TypeScript version is Visual Studio Code using? How to update it?
  24. Why does TypeScript track mutation of function static properties?
  25. Array VS Type[] in Typescript
  26. What’s the meaning of “=>” in TypeScript? (Fat Arrow)
  27. How to use array.map with tuples in typescript?
  28. how to remove properties via mapped type in TypeScript
  29. Simple function with conditional type
  30. Iterable cannot confirm generic T in function

Leave a Comment