Sassの詳細説明map_html/css_WEB-ITnose

$map: (  key1: value1,  key2: value2,  key3: value3);

$map: (  key1: value1,  key2: value2,  key3: value3);/* 遍历map */@each $key, $value in $map {  .element--#{$key} {    background: $value;  }}

/* 使用map定义不同的值 */$card_transition_map: (  trans1: 200ms transform ease-in-out,  trans2: 400ms background ease-in,  trans3: 600ms color linear);/* map-values统一使用 */.card {  transition: map-values($card_transition_map);}

.card {    transition: 200ms transform ease-in-out,                 400ms background ease-in,                 600ms color linear;}

$animation_config: (  name: none,  duration: 0s,  timing: ease,  delay: 0s,  iteration: 1, // infinite  direction: normal, // reverse, alternate, alternate-reverse  fill-mode: none, // forwards, backwards, both  play-state: running);@function sh-setup($config) {  @return zip(map-values($config)...);} .object {  animation: sh-setup($animation_config);}

.object {  animation: none 0s ease 0s 1 normal none running;}

$background_color: (	jeremy: #0989cb,	beth: #8666ae,	matt: #02bba7,	ryan: #ff8178);$font: (	jeremy: Helvetica,	beth: Verdana,	matt: Times,	ryan: Arial);@each $key, $value in $background_color {	.#{$key} {		background: $value;		font-family: map-get($font, $key);	}}

.jeremy {  background: #0989cb;  font-family: Helvetica;}.beth {  background: #8666ae;  font-family: Verdana;}.matt {  background: #02bba7;  font-family: Times;}.ryan {  background: #ff8178;  font-family: Arial;}

/*定义配置文件*/$z-index: (  modal              : 200,  navigation         : 100,  footer             : 90,  triangle           : 60,  navigation-rainbow : 50,  share-type         : 41,  share              : 40,);/*在合适的时机调用*/.navigation {  z-index: map-get($z-index, navigation);}

.navigation {  z-index: 100;}

$z-index: (  modal              : 200,  navigation         : 100,  footer             : 90,  triangle           : 60,  navigation-rainbow : 50,  share-type         : 41,  share              : 40,);@function z-index($key) {  @return map-get($z-index, $key);}@mixin z-index($key) {  z-index: z-index($key);}/*调用时*/.navigation {  @include z-index(navigation);}

// _config.scss$breakpoints: (  small: 767px,  medium: 992px,  large: 1200px); // _mixins.scss@mixin respond-to($breakpoint) {   @if map-has-key($breakpoints, $breakpoint) {    @media (min-width: #{map-get($breakpoints, $breakpoint)}) {      @content;    }  }   @else {    @warn "Unfortunately, no value could be retrieved from `#{$breakpoint}`. "        + "Please make sure it is defined in `$breakpoints` map.";  }} // _component.scss.element {  color: hotpink;   @include respond-to(small) {    color: tomato;  }}

.element {  color: hotpink;}@media (min-width: 767px) {  .element {    color: tomato;  }}

/*定义*//// Mixin to prefix several properties at once/// @author Hugo Giraudel/// @param {Map} $declarations - Declarations to prefix/// @param {List} $prefixes (()) - List of prefixes to print@mixin prefix($declarations, $prefixes: ()) {  @each $property, $value in $declarations {    @each $prefix in $prefixes {      #{'-' + $prefix + '-' + $property}: $value;    }    // Output standard non-prefixed declaration    #{$property}: $value;  }}/*使用*/.selector {  @include prefix((    column-count: 3,    column-gap: 1.5em,    column-rule: 2px solid hotpink  ), webkit moz);}

.selector {  -webkit-column-count: 3;  -moz-column-count: 3;  column-count: 3;  -webkit-column-gap: 1.5em;  -moz-column-gap: 1.5em;  column-gap: 1.5em;  -webkit-column-rule: 2px solid hotpink;  -moz-column-rule: 2px solid hotpink;  column-rule: 2px solid hotpink;}

/*定义*//// Returns the opposite direction of each direction in a list/// @author Hugo Giraudel/// @param {List} $directions - List of initial directions/// @return {List} - List of opposite directions@function opposite-direction($directions) {  $opposite-directions: ();  $direction-map: (    'top':    'bottom',    'right':  'left',    'bottom': 'top',    'left':   'right',    'center': 'center',    'ltr':    'rtl',    'rtl':    'ltr'  );   @each $direction in $directions {    $direction: to-lower-case($direction);        @if map-has-key($direction-map, $direction) {       $opposite-directions: append($opposite-directions, unquote(map-get($direction-map, $direction)));    } @else {      @warn "No opposite direction can be found for `#{$direction}`. Direction omitted.";    }  }   @return $opposite-directions;}/*使用*/.selector {  background-position: opposite-direction(top right);}

.selector {  background-position: bottom left;}