Functional `pad` implementation

pad.ts

interface PadConfig {
  value: string
  padding: string
  requiredLength: number
}

export const pad = ({ value, padding, requiredLength }: PadConfig): string => {
  const pads = Math.max(requiredLength - value.length, 0)

  return Array(pads).fill(padding).concat(value).join('')
}


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