src/view/com/util/numeric/format.ts


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export const formatCount = (num: number) =>
  Intl.NumberFormat('en-US', {
    notation: 'compact',
    maximumFractionDigits: 1,
    // `1,953` shouldn't be rounded up to 2k, it should be truncated.
    // @ts-expect-error: `roundingMode` doesn't seem to be in the typings yet
    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat#roundingmode
    roundingMode: 'trunc',
  }).format(num)

export function formatCountShortOnly(num: number): string {
  if (num >= 1000000) {
    return (num / 1000000).toFixed(1) + 'M'
  }
  if (num >= 1000) {
    return (num / 1000).toFixed(1) + 'K'
  }
  return String(num)
}