sass:string

Dart Sass: since 1.23.0
LibSass: ✗
Ruby Sass: ✗

Only Dart Sass currently supports loading built-in modules with @use. Users of other implementations must call functions using their global names instead.

string.quote($string)
quote($string) //=> string

返回 $string 作为带引号的字符串。

¥Returns $string as a quoted string.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.quote(Helvetica); // "Helvetica"
@debug string.quote("Helvetica"); // "Helvetica"

      Playground
    Sass Syntax@use "sass:string"

@debug string.quote(Helvetica)  // "Helvetica"
@debug string.quote("Helvetica")  // "Helvetica"

string.index($string, $substring)
str-index($string, $substring) //=> number

返回 $string 中 $substring 的第一个索引，如果 $string 不包含 $substring，则返回 null。

¥Returns the first index of $substring in $string, or null if $string doesn’t contain $substring.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.index("Helvetica Neue", "Helvetica"); // 1
@debug string.index("Helvetica Neue", "Neue"); // 11

      Playground
    Sass Syntax@use "sass:string"

@debug string.index("Helvetica Neue", "Helvetica")  // 1
@debug string.index("Helvetica Neue", "Neue")  // 11

string.insert($string, $insert, $index)
str-insert($string, $insert, $index) //=> string

返回 $string 的副本，其中 $insert 插入到 $index 处。

¥Returns a copy of $string with $insert inserted at $index.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.insert("Roboto Bold", " Mono", 7); // "Roboto Mono Bold"
@debug string.insert("Roboto Bold", " Mono", -6); // "Roboto Mono Bold"

      Playground
    Sass Syntax@use "sass:string"

@debug string.insert("Roboto Bold", " Mono", 7)  // "Roboto Mono Bold"
@debug string.insert("Roboto Bold", " Mono", -6)  // "Roboto Mono Bold"

如果 $index 大于 $string 的长度，则将 $insert 添加到末尾。如果 $index 小于字符串的负长度，则将 $insert 添加到开头。

¥If $index is higher than the length of $string, $insert is added to the end. If $index is smaller than the negative length of the string, $insert is added to the beginning.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.insert("Roboto", " Bold", 100); // "Roboto Bold"
@debug string.insert("Bold", "Roboto ", -100); // "Roboto Bold"

      Playground
    Sass Syntax@use "sass:string"

@debug string.insert("Roboto", " Bold", 100)  // "Roboto Bold"
@debug string.insert("Bold", "Roboto ", -100)  // "Roboto Bold"

string.length($string)
str-length($string) //=> number

返回 $string 中的字符数。

¥Returns the number of characters in $string.

  SCSS

  Sass

      
      Playground
    SCSS Syntax@use "sass:string";

@debug string.length("Helvetica Neue"); // 14
@debug string.length(bold); // 4
@debug string.length(""); // 0

      
      Playground
    Sass Syntax@use "sass:string"

@debug string.length("Helvetica Neue")  // 14
@debug string.length(bold)  // 4
@debug string.length("")  // 0

string.slice($string, $start-at, $end-at: -1)
str-slice($string, $start-at, $end-at: -1) //=> string

返回 $string 的切片，从索引 $start-at 开始，到索引 $end-at 结束（包括两者）。

¥Returns the slice of $string starting at index $start-at and ending at index $end-at (both inclusive).

  SCSS

  Sass

      
      Playground
    SCSS Syntax@use "sass:string";

@debug string.slice("Helvetica Neue", 11); // "Neue"
@debug string.slice("Helvetica Neue", 1, 3); // "Hel"
@debug string.slice("Helvetica Neue", 1, -6); // "Helvetica"

      
      Playground
    Sass Syntax@use "sass:string"

@debug string.slice("Helvetica Neue", 11)  // "Neue"
@debug string.slice("Helvetica Neue", 1, 3)  // "Hel"
@debug string.slice("Helvetica Neue", 1, -6)  // "Helvetica"

string.split($string, $separator, $limit: null) //=> list

Dart Sass: since 1.57.0
LibSass: ✗
Ruby Sass: ✗

返回 $string 中以逗号分隔的括号内的子字符串列表，这些子字符串由 $separator 分隔。$separator 不包含在这些子字符串中。

¥Returns a bracketed, comma-separated list of substrings of $string that are separated by $separator. The $separators aren’t included in these substrings.

如果 $limit 是数字 1 或更高，则最多会分割 $separator 个数字（因此最多返回 $limit + 1 个字符串）。最后一个子字符串包含字符串的其余部分，包括任何剩余的 $separator。

¥If $limit is a number 1 or higher, this splits on at most that many $separators (and so returns at most $limit + 1 strings). The last substring contains the rest of the string, including any remaining $separators.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.split("Segoe UI Emoji", " "); // ["Segoe", "UI", "Emoji"]
@debug string.split("Segoe UI Emoji", " ", $limit: 1); // ["Segoe", "UI Emoji"]

      Playground
    Sass Syntax@use "sass:string"

@debug string.split("Segoe UI Emoji", " ")  // ["Segoe", "UI", "Emoji"]
@debug string.split("Segoe UI Emoji", " ", $limit: 1)  // ["Segoe", "UI Emoji"]

string.to-upper-case($string)
to-upper-case($string) //=> string

返回 $string 的副本，其中 ASCII 字母转换为大写。

¥Returns a copy of $string with the ASCII letters converted to upper case.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.to-upper-case("Bold"); // "BOLD"
@debug string.to-upper-case(sans-serif); // SANS-SERIF

      Playground
    Sass Syntax@use "sass:string"

@debug string.to-upper-case("Bold")  // "BOLD"
@debug string.to-upper-case(sans-serif)  // SANS-SERIF

string.to-lower-case($string)
to-lower-case($string) //=> string

返回 $string 的副本，其中 ASCII 字母转换为小写。

¥Returns a copy of $string with the ASCII letters converted to lower case.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.to-lower-case("Bold"); // "bold"
@debug string.to-lower-case(SANS-SERIF); // sans-serif

      Playground
    Sass Syntax@use "sass:string"

@debug string.to-lower-case("Bold")  // "bold"
@debug string.to-lower-case(SANS-SERIF)  // sans-serif

string.unique-id()
unique-id() //=> string

返回一个随机生成的不带引号的字符串，该字符串保证是有效的 CSS 标识符，并且在当前 Sass 编译中是唯一的。

¥Returns a randomly-generated unquoted string that’s guaranteed to be a valid CSS identifier and to be unique within the current Sass compilation.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.unique-id(); // uabtrnzug
@debug string.unique-id(); // u6w1b1def

      Playground
    Sass Syntax@use "sass:string"

@debug string.unique-id(); // uabtrnzug
@debug string.unique-id(); // u6w1b1def

string.unquote($string)
unquote($string) //=> string

返回 $string 作为不带引号的字符串。这可能会生成无效 CSS 的字符串，因此请谨慎使用。

¥Returns $string as an unquoted string. This can produce strings that aren’t valid CSS, so use with caution.

  SCSS

  Sass

      Playground
    SCSS Syntax@use "sass:string";

@debug string.unquote("Helvetica"); // Helvetica
@debug string.unquote(".widget:hover"); // .widget:hover

      Playground
    Sass Syntax@use "sass:string"

@debug string.unquote("Helvetica")  // Helvetica
@debug string.unquote(".widget:hover")  // .widget:hover