namae/web/src/util/array.ts

export function shuffleArray<T>(array: T[]): T[] {
  for (let i = array.length - 1; i > 0; i--) {
    const j = Math.floor(Math.random() * (i + 1));
    const temp = array[i];
    array[i] = array[j];
    array[j] = temp;
  }
  return array;
}

export function sampleFromArray<T>(array: T[], maximum: number): T[] {
  return shuffleArray(array).slice(0, maximum);
}

export function fillArray<T>(array: T[], filler: string, maximum: number): T[] {
  const deficit = maximum - array.length;
  if (deficit > 0) {
    array = [...array, ...Array(deficit).fill(filler)];
  }
  return array;
}