Sass @each Loops

If you’ve got a Sass Map or Lists you can loop through them, rather than addressing each key separately. At the beginning of the @each loop, you assign a variable to be used inside the loop:

$shapes: triangle, square, circle;

@each $shape in $shapes {
  .icon-#{$shape} {
    background-image: url('/images/#{$shape}.jpg');
  }
}

$map: (
  h1: 20px,
  h2: 16px,
  h3: 14px
);

@each $element, $size in $map {
  #{$element} {
    font-size: $size;
  }
}

If concatenating the variable with a string, or using it as a class/element, the variable will need to be preceded with a #{ and prepended with a } to tell the compiler you actually mean the variable.

You are also able to nest loops inside of loops, if your map is multi levels deep.

Author: Mike Street

Mike Street

Mike is a front-end developer for Brighton agency Liquid Light. When not writing copious amounts of CSS he can be found cycling with around Sussex or making an arduino blink.

Find Mike at mikestreety.co.uk

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