@randsum/dice/src/guards/isCustomRollParams.ts

A flexible, type-safe dice roller for tabletop RPGs, game development, and probability simulations

import type { CustomRollParams, RollParams } from '../types'

export function isCustomRollParams(
  poolParameters: RollParams
): poolParameters is CustomRollParams {
  return Array.isArray(poolParameters.options.sides)
}