// returns first element of a list
@function first($list) {
	@return nth($list, 1);
}

// returns last element of a list
@function last($list) {
	@return nth($list, length($list));
}

// get the map key at index
@function index-to-key($index, $map: $breakpoints) {
  $keys: map-keys($map); // A list of all keys in a $breakpoints map

  @return nth($keys, $index);
}

// helper to show size of breakpoint
@function breakpoint($breakpoint) {
	@return map_get($breakpoints, $breakpoint);
}

// returns unitless value
@function strip-unit($number) {
	@return $number / ($number * 0 + 1);
}

// replace string
@function str-replace($string, $search, $replace: "") {
	$index: str-index($string, $search);

	@if $index {
		@return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
	}

	@return $string;
}