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как правильно записать конструкцию if


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пишу так:

a {
      if &[href $='.pdf'] {$typecontent: '\f1c1';}
      if &[href $='.xls'] or &[href $='.xlsx'] {$typecontent: '\f1c3';}
      if &[href $='.doc'] or &[href $='.docx'] {$typecontent: '\f1c2';}
      if &[href $='.ppt'] or &[href $='.pptx'] {$typecontent: '\f1c4';}
      if &[href $='.zip'] or &[href $='.7zip'] or &[href $='.rar'] {$typecontent: '\f1c6';}
      else {$typecontent: '';}
    }
.dsize {
            color: $wite;
            &::before {
              margin-right: .5em;
              font-family: "Font Awesome 5 Free";
              font-weight: 600;
              content: $typecontent;
            }

на что получаю ошибку компилятора: 

Error: Undefined variable.
╷
108 │ content: $typecontent;
│ ^^^^^^^^^^^^
╵
pen.scss 108:24 root stylesheet

где моя ошибка? Подскажите плиз!

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Здравствуйте.

Скорее всего этот код на SASS/SCSS. Ошибка в абстракции написания кода. Проверять значения атрибутов в стилях не получится. Вы можете присваивать разные стили, в зависимости от указанных значения в атрибутах.

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