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  1. References
  2. XPath
  3. Functions
  4. true
  1. XSLT: Extensible Stylesheet Language Transformations
    1. An overview
    2. For further reading
    3. The Netscape XSLT/XPath Reference
  1. XSLT elements reference
    1. <xsl:apply-imports>
    2. <xsl:apply-templates>
    3. <xsl:attribute-set>
    4. <xsl:attribute>
    5. <xsl:call-template>
    6. <xsl:choose>
    7. <xsl:comment>
    8. <xsl:copy-of>
    9. <xsl:copy>
    10. <xsl:decimal-format>
    11. <xsl:element>
    12. <xsl:fallback>
    13. <xsl:for-each>
    14. <xsl:if>
    15. <xsl:import>
    16. <xsl:include>
    17. <xsl:key>
    18. <xsl:message>
    19. <xsl:namespace-alias>
    20. <xsl:number>
    21. <xsl:otherwise>
    22. <xsl:output>
    23. <xsl:param>
    24. <xsl:preserve-space>
    25. <xsl:processing-instruction>
    26. <xsl:sort>
    27. <xsl:strip-space>
    28. <xsl:stylesheet>
    29. <xsl:template>
    30. <xsl:text>
    31. <xsl:transform>
    32. <xsl:value-of>
    33. <xsl:variable>
    34. <xsl:when>
    35. <xsl:with-param>
  1. EXSLT
    1. Common (exsl)
    2. Math (math)
    3. Regular expressions (regexp)
    4. Sets (set)
    5. Strings (str)
  1. Functions
    1. boolean
    2. ceiling
    3. choose
    4. concat
    5. contains
    6. count
    7. current
    8. document
    9. element-available
    10. false
    11. floor
    12. format-number
    13. function-available
    14. generate-id
    15. id
    16. key
    17. lang
    18. last
    19. local-name
    20. name
    21. namespace-uri
    22. normalize-space
    23. not
    24. number
    25. position
    26. round
    27. starts-with
    28. string
    29. string-length
    30. substring
    31. substring-after
    32. substring-before
    33. sum
    34. system-property
    35. translate
    36. true
    37. unparsed-entity-url
  1. Axes

true

The true function returns a boolean value of true.

Syntax

true()

Returns

Boolean true.

Defined

XPath 1.0 4.3

Gecko support

Supported.

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This page was last modified on Jun 16, 2023 by MDN contributors.

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