http://www.freecodecamp.com/subodh737 's solution for Bonfire: Truncate a string

bonfire-truncate-a-string.js

// Bonfire: Truncate a string
// Author: @subodh737
// Challenge: http://www.freecodecamp.com/challenges/bonfire-truncate-a-string
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function truncate(str, num) {
  // Clear out that junk in your trunk
  if (str.length > num) {
    if (num > 3) {
      str = str.slice(0, (num - 3));
    } else {
      str = str.slice(0, num);
    }
    str = str + "...";
  }
  //console.log(str);
  return str;
}

truncate("A-tisket a-tasket A green and yellow basket", 11);