General TypeScript Helpers

This package provides a range of utility functions that I personally often need, which is why I bundled them in a package.

import { isNotEmpty } from "@elyukai/utils/array/nonEmpty"

const extractFirstNumberDoubled = (arr: number[]): number | undefined => {
  if (isNotEmpty(arr)) {
    return arr[0] * 2 // accessing index 0 is safe!
  }

  return undefined
}

Helper types

It might be unwanted to have built-in object types extended by libraries. However, there are some built-in functions that would benefit from extensions. For this reason, this repository includes a ready-to-copy file global.d.ts that can be inserted into your project.