假设您有重复的代码:
$primary: white;
$secondary: black;
$success: green;
$danger: red;
$warning: yellow;
&.primary-stripe {
border-top-color: $primary;
}
&.secondary-stripe {
border-top-color: $secondary;
}
&.success-stripe {
border-top-color: $success;
}
&.danger-stripe {
border-top-color: $danger;
}
&.warning-stripe {
border-top-color: $warning;
}
有没有一种方法可以通过基于已经存在的类名访问变量来简化它?例如
&.[var]-stripe {
border-top-color: $[var];
}
唯一棘手的部分是$ [var]不存在时发生的情况。我猜这可能会出错吗?
答案 0 :(得分:0)
您可以为此使用SASS Map:
$color_map: (
'primary': 'white',
'secondary': 'black',
'success': 'green',
'danger': 'red',
'warning': 'yellow'
);
.main_selector {
@each $name, $color in $color_map {
&.#{$name}-stripe {
border-top-color: #{$color};
}
}
}
它编译为:
.main_selector.primary-stripe {
border-top-color: white;
}
.main_selector.secondary-stripe {
border-top-color: black;
}
.main_selector.success-stripe {
border-top-color: green;
}
.main_selector.danger-stripe {
border-top-color: red;
}
.main_selector.warning-stripe {
border-top-color: yellow;
}