map inside of a list bug

[GrtDev]

When you put a single map inside of a list, SASS somehow only grabs the first key/value pair as a list when you try to loop through it? Resulting in an error when you attempt a map-get function.

When you put multiple maps inside of a list it works as expected.

Example here: http://codepen.io/Sector22/pen/PZPxPp?editors=010

[chriseppstein]

Parenthesis do not define a list with the exception of () defining an empty list. In all other cases, parenthesis are simply grouping of expressions. Lists are defined by their use of separators.

// parenthesis here are redundant
$list: ($some-map);
// this is just simple assignment of a map to a variable named $list.
$list: $some-map;

To define a list of a single element, you must have a trailing comma and it is often necessary to use parenthesis around that list to avoid that comma from changing the interpretation of the remaining expression.

// valid list of one element containing a map
$list: $some-map, ;
// this is the same, but some find it more robust and aesthetically pleasing to keep the parenthesis.
$list: ($some-map,) ;

[GrtDev]

Hi @chriseppstein ,

Thank you so much for clearing this up for me! This makes much more sense.

Cheers!