anchor.diff:  'use strict';
   $(() => {
   
  -  const $predictCounts = $('.review.predict-counts');
  +  const $counts = $('.review.predict-counts');
   
     const counts = { cross: 0, tick: 0 };
   
  
positive.code: <div class="review predict-counts">
    <div class="circle box">
      <div class="cross count"></div>
      <img src="/images/traffic-light/circle-cross.png">
  
negative.code:       const isRight = (colour === light.predicted);
        const name = isRight ? 'tick' : 'cross';
        setPredict(name, counts[name] + 1);
        $counts.show();
      }
    };
  
    const setPredict = (name, n) => {
      const $count = $(`.${name}.count`, $counts);
      $count.text(counts[name] = n);
    };
  
  