Is it possible to use the element ID as a variable?

Question

Sass

You need to dynamically assign a background image depending on the ID. Something like this:

@each .class-elementa {
    background: url(/images/#{$id-elementa}.jpg)
}

Answer 1

@each $name in 'save' 'cancel' 'help' {
    .icon-#{$name} {
        background-image: url('/images/#{$name}.png');
    }
}

at the exit

.icon-save {
  background-image: url("/images/save.png");
}

.icon-cancel {
  background-image: url("/images/cancel.png");
}

.icon-help {
  background-image: url("/images/help.png");
}