show reading time

script

// show reading time
/*
Third-grade students = 150 words per minute (wpm)
Eighth grade students = 250 wpm
Average college student = 450 wpm
Average "high-level exec" = 575 wpm
Average college professor = 675 wpm
Speed readers = 1,500 wpm
World speed reading champion = 4,700 wpm
Average adult = 300 wpm
*/

const wpm = 300;


function calcReadingTime(text) {
  const words = text.trim().split(/\s+/).length;
  const decimalMinutes = words / wpm //Math.ceil(words / wpm);

// Extract whole number part 
const wholeMinutes = Math.floor(decimalMinutes); 
// Extract decimal part and convert to seconds 
const decimalPart = decimalMinutes - wholeMinutes; 
const seconds = Math.round(decimalPart * 60);



  return [words, wholeMinutes + "min " + seconds + "s"];
}


const text = draft.content

let result = calcReadingTime(text);
const words = result[0]
const readingTime = result[1]

alert("reading time = " + readingTime + "\n\n" + words + " words, " + wpm + " wpm reading speed")