Pragmatic Guide to Sass 3

List Functions

Lists in Sass are immutable; all list functions return a new list rather than updating the existing list in place.

All list functions work for maps as well, treating them as lists of pairs. For example, the map (register: green, sign-out: red) would be treated as ((register, green), (sign-out, red)).

length($list)

Returns the length of a list.

nth($list, $n)

Returns a specific item in a list.

set-nth($list, $n, $value)

Replaces the nth item in a list.

join($list1, $list2, [$separator])

Joins together two lists into one.

append($list1, $val, [$separator])

Appends a single value onto the end of a list.

zip($lists…)

Combines several lists into a single multidimensional list.

index($list, $value)

Returns the position of a value within ...