Simple function for parsing a number and creating a "pretty" formatted version such as 1.3k. Useful for things like social share counts.

parseCount.js

/**
 * Given a number or string, parses out the number and creates a "pretty" 
 * rounded version.
 *  
 * @param {Number|String} raw - string or number to parse
 * @return {Object} information about the passed number
 *    - {Number} number - cleaned up integer
 *    - {String} pretty - "pretty" formated number
 *    - {Number} digits - number of digets
 */
function parseCount(raw) {
  number = parseInt(raw) > 0 ? parseInt(raw) : 0;
  var count = {
    number: number,
    pretty: number.toString(),
    digits: number.toString().length
  };

  if (count.digits > 3 && count.digits < 7) {
    count.pretty = Math.floor(number/100)/10 + 'k';
  } else if (count.digits > 7) {
    count.pretty = Math.floor(number/100000)/10 + 'm';
  }
  return count;
}

// Examples:
parseCount(89);           // Object {number: 89, pretty: "89", digits: 2} 
parseCount('672');        // Object {number: 672, pretty: "672", digits: 3} 
parseCount(1328);         // Object {number: 1328, pretty: "1.3k", digits: 4} 
parseCount(2398234);      // Object {number: 2398234, pretty: "2.3m", digits: 7} 
parseCount('13098098289');// Object {number: 13098098289, pretty: "13098m", digits: 11}