export const flatten = <T>(array: T[]) => ([] as T[]).concat(...array)

export const random = (min: number, max: number) =>
  Math.floor(Math.random() * (max - min) + min)

export const range = (start: number, end: number) =>
  Array.from(' '.repeat(end - start), (_, index) => start + index)

export const shuffle = <T>(values: T[]) =>
  values
    .map((value) => [Math.random(), value] as const)
    .sort(([left], [right]) => left - right)
    .map(([, value]) => value)