files/en-us/web/xml/xslt/reference/element/value-of/index.md
The <xsl:value-of> element evaluates an XPath expression, converts it to a string, and writes that string to the result tree.
<xsl:value-of select=EXPRESSION disable-output-escaping="yes" | "no" />
select
disable-output-escaping (Netscape does not serialize the result of transformation - the "output" below - so this attribute is essentially irrelevant in context. To output html-entities, use numerical values instead, eg   for  )
yes or no. If yes is set, for example, the character > is output as >, not as >.Instruction, appears with a template.
XSLT, section 7.6.1.
Supported except as above.