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                <div class="container" id="commute-calculator">
   <div class="row">
      <div class="col mr-auto ml-auto">
         <label for="basic-url">I work for...</label>
         <div class="input-group mb-3">
           <input type="number" min="1" max="7" v-model="days" class="form-control" id="days" aria-describedby="days">
           <span class="input-group-addon" id="days">days a week</span>
         <div class="input-group mb-3">
           <input type="number" min="1" max="52" v-model="weeks" class="form-control" id="weeks" aria-describedby="weeks">
           <span class="input-group-addon" id="weeks">weeks in a year</span>
         <div class="input-group mb-3">
           <span class="input-group-addon" id="minutes">My commute is</span>
           <input type="number" min="1" v-model="travel_time" class="form-control" id="minutes" aria-describedby="minutes">
           <span class="input-group-addon">minutes long</span>
   <template v-if="weeks > 0 && days > 0 && travel_time > 0">
      <div class="row custom-card">
         <div class="col-md-10 mr-auto ml-auto">
           <h2 class="text-center">
              Your yearly commute is

           <ul class="list-group">
              <li class="list-group-item"><strong>{{ total_minutes }}</strong> minutes</li>
              <li class="list-group-item" v-if="total_hours > 0"><strong>{{ total_hours }}</strong> hours</li>
              <li class="list-group-item" v-if="total_days > 0"><strong>{{ total_days }}</strong> days</li>
              <li class="list-group-item" v-if="total_days > 0"><strong>{{ total_weeks }}</strong> weeks</li>

              <li class="list-group-item" v-if="total_sols > 0"><strong>{{ total_sols }}</strong> days on Mars</li>
              <li class="list-group-item" v-if="total_neptunes > 0"><strong>{{ total_neptunes }}</strong> days on Neptune</li>
              <li class="list-group-item" v-if="total_nights > 0"><strong>{{ total_nights }}</strong> good nights' rests</li>
              <li class="list-group-item" v-if="total_podcasts > 0"><strong>{{ total_podcasts }}</strong> podcast episodes</li>
              <li class="list-group-item" v-if="total_audiobooks > 0"><strong>{{ total_audiobooks }}</strong> audiobooks</li>
              <li class="list-group-item" v-if="total_hangovers > 0"><strong>{{ total_hangovers }}</strong> hangovers</li>
              <li class="list-group-item" v-if="total_Windows_loads > 0"><strong>{{ total_Windows_loads }}</strong> Windows desktops booting up</li>
              <li class="list-group-item" v-if="total_Friends_shows > 0"><strong>{{ total_Friends_shows }}</strong> episodes of Friends</li>
              <li class="list-group-item" v-if="total_GoT_finales > 0"><strong>{{ total_GoT_finales }}</strong> Game of Thrones season finales</li>
              <li class="list-group-item" v-if="total_scaramuccis > 0"><strong>{{ total_scaramuccis }}</strong> Scaramuccis</li>
              <li class="list-group-item" v-if="total_kardashians > 0"><strong>{{ total_kardashians }}</strong> Kardashians</li>
   <template v-else>
      <h3 class="mt-4">
         Fill in the above blanks!


                $white: #fbf6ef;
$black: #222023;

body {
   padding: 1rem;
   color: $white;
   background-color: $black;

.custom-card {
   padding: 1.5rem 2rem;
   color: $black;
   background-color: $white;   



                var vm = new Vue({
  el: '#commute-calculator',
  data: {
    weeks: null,
    days: null,
    travel_time: null
   computed: {
      minutes: function() {
         let minutes = parseInt(this.travel_time);
         let weeks = parseInt(this.weeks);
         let days = parseInt(this.days);
         let total_time = minutes * 2 * days * weeks;
         return total_time;
      hours: function() { return this.minutes / 60; },
      total_minutes: function() { return addCommas(this.minutes); },
      total_hours: function() { return addCommas(this.minutes / 60); },
      total_days: function() { return addCommas(this.hours / 24); },
      total_nights: function() { return addCommas(this.hours / 7.5); },
      total_sols: function() { return addCommas(this.minutes / 1480); },
      total_neptunes: function() { return addCommas(this.hours / 16); },
      total_weeks: function() { return addCommas(this.hours / 24 / 7); },
      total_Windows_loads: function() { return addCommas(this.minutes / 25); },
      total_podcasts: function() { return addCommas(this.minutes / 23); },
      total_audiobooks: function() { return addCommas(this.hours / 11); },
      total_hangovers: function() { return addCommas(this.hours / 16); },
      total_Friends_shows: function() { return addCommas(this.minutes / 28); },
      total_GoT_finales: function() { return addCommas(this.minutes / 81); },
      total_scaramuccis: function() { return addCommas(this.hours / 24 / 10); },
      total_kardashians: function() { return addCommas(this.hours / 24 / 72); }

function addCommas(nStr) {
	nStr = nStr.toFixed(1);
   nStr += '';
	let x = nStr.split('.');
	let x1 = x[0];
	let x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) { x1 = x1.replace(rgx, '$1' + ',' + '$2'); }
   return (x1 + x2);