export function toString(val: number): string {
  return `${val}`
}
export function perSession(val: number): string {
  return `${val} per session`
}
export function asMinutes(val: number): string {
  return `${val} (mins)`
}
export function asDollar(val: number): string {
  return `$ ${val}`
}
export function asKDollar(val: number): string {
  return `$ ${val}K`
}
export function asPercent(val: number): string {
  return `${val} %`
}

type WithOptions = (val: number, timestamp: number) => string
type WithTimeOptions = (val: number, timestamp: number) => string

export function toDate(format: string): WithTimeOptions {
  return (val, timestamp) => timestamp.toString()
}

export function toFixed(fractionDigit: number, divider = 1): WithOptions {
  return val => (val / divider).toFixed(fractionDigit)
}