title: Merge string and variable to a variable with SASS
body: <p>I want to merge a variable and a string to a new variable, like the following:</p>
  
  <pre><code>$product_bodyclass_list: class1 class2 class3 class4;
  
  $product_class1_color: #C00;
  $product_class2_color: #00C;
  $product_class3_color: #0C0;
  $product_class4_color: #000;
  
  @each $bodyclass in $product_bodyclass_list {
      .page-#{$bodyclass} {
          a {
              color: $product_#{$bodyclass}_color; // This is wrong
          }
      }
  }
  </code></pre>
  
  <p>Does anybody know how to do this?</p>