How To Calculate Reading Time in Javascript/Typescript

Function:

const calculateReadingTime = (text: string) => {
  // Average human reading speed (WPM)
  const wordsPerMinute = 200

  let textLength = String(text).split(" ").length
  if (textLength > 0) {
    return Math.ceil(textLength / wordsPerMinute)
  }
  return 0
}

Usage example:

const text = "Lorem ipsum dolor sit amet"
const readingTime = calculateReadingTime(text) // 1