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<xsl:sort>

XSLT/XPath Reference: XSLT elements, EXSLT functions, XPath functions, XPath axes

The <xsl:sort> element defines a sort key for nodes selected by <xsl:apply-templates> or <xsl:for-each> and determines the order in which they are processed.

Syntax

<xsl:sort
  select=EXPRESSION
  order="ascending" | "descending"
  case-order="upper-first" | "lower-first"
  lang=XML:LANG-CODE
  data-type="text" | "number" />

Required Attributes

None.

Optional Attributes

select: Uses an XPath expression to specify the nodes to be sorted.
order: Specifies whether the nodes should be processed in "ascending" or "descending" order. The default is "ascending".
case-order: Indicates whether upper- or lowercase letters are to be ordered first. The allowable values are "upper-first" and "lower-first".
lang: Specifies which language is to be used by the sort.
data-type: Defines whether items are to be ordered alphabetically or numerically. The allowable values are "text" and "number" with "text" being the default.

Type

Subinstruction, always appears as a child of <xsl:for-each>, where it must appear before the template proper or of <xsl:apply-templates>.

Defined

XSLT, section10.

Gecko support

Supported.

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https://developer.mozilla.org/en-US/docs/Web/XSLT/Element/sort