xsl:perform-sort

Sorts a sequence and returns the sorted result, without iterating.

<xsl:perform-sort select="$items">
  <xsl:sort select="@price" data-type="number"/>
</xsl:perform-sort>

Use xsl:perform-sort when you need a sorted sequence as an XPath value (for example to assign to a variable), rather than to drive an iteration. The input can be supplied via the select attribute or via a sequence constructor body — but xsl:sort children must always come first.

Attributes

Examples

Storing a sorted sequence in a variable:

<xsl:variable name="ranked" as="element(item)*">
  <xsl:perform-sort select="item">
    <xsl:sort select="@score" data-type="number" order="descending"/>
  </xsl:perform-sort>
</xsl:variable>

Sorting an inline sequence:

<xsl:perform-sort>
  <xsl:sort select="." data-type="number"/>
  <xsl:sequence select="3, 1, 4, 1, 5, 9, 2, 6"/>
</xsl:perform-sort>