Video total time to watch for a week on a Coursera Course

coursera_video_time.js

/*
  A quick way to know how many hours and minutes you have to watch for a week on a Coursera course.
  Just copy and paste this code on your console on a Course Content Week page.
  How to open your console you say?:
    - On Chrome: https://developers.google.com/web/tools/chrome-devtools/debug/console/console-ui?hl=en
    - On Safari: https://developer.apple.com/library/mac/documentation/AppleApplications/Conceptual/Safari_Developer_Guide/GettingStarted/GettingStarted.html
    - On Firefox: https://developer.mozilla.org/es/docs/Tools/Web_Console
*/

var effort    = $('.rc-EffortText');
var week      = $('.c-selected span').text();
var course    = $('.rc-CourseHeader .headline-1-text').text();
var totalTime = 0;
for (var i = 0; i < effort.length; i++) {
  var time = $(effort[i]).text();
  var minutes = time.split(' min');
  minutes = minutes.length > 1 ? minutes[0] : 0;
  totalTime += Number(minutes);
}
var hours = Math.floor(totalTime / 60);
var min = (totalTime % 60);
alert('Total time for ' + week + ' of ' + course + ' => ' + hours + ' hour(s) and ' + min + ' minute(s).');