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  1. 開発者向けのウェブ技術
  2. XML: Extensible Markup Language
  3. XPath
  4. Reference
  5. 関数
  6. count
    • Is this useful?
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このページはコミュニティーの尽力で英語から翻訳されました。MDN Web Docs コミュニティーについてもっと知り、仲間になるにはこちらから。

この記事では

  • 構文
  • 仕様書
  • Gecko の対応
  1. XML
  2. XML Guides
    1. XML 入門
    2. XML の構文解析とシリアライズ
    3. OpenSearch 記述形式
  3. XPath
  4. XPath Guides
    1. XPath スニペット
    2. CSS セレクターと XPath の比較
    3. JavaScript での XPath の利用の手引き
  5. XPath 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
  6. Xpath axes
  7. XSLT
  8. XSLT Guides
    1. XSLT による XML の変換
    2. PI の引数
    3. 一般的な XSLT エラー
  9. XSLT Elements
    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>
  10. EXSLT
  11. EXSLT exsl
    1. exsl:node-set()
    2. exsl:object-type()
  12. EXSLT math
    1. math:highest()
    2. math:lowest()
    3. math:max()
    4. math:min()
  13. EXSLT regexp
    1. regexp:match()
    2. regexp:replace()
    3. regexp:test()
  14. EXSLT set
    1. set:difference()
    2. set:distinct()
    3. set:has-same-node()
    4. set:intersection()
    5. set:leading()
    6. set:trailing()
  15. EXSLT str
    1. str:concat()
    2. str:split()
    3. str:tokenize()

この記事では

  • 構文
  • 仕様書
  • Gecko の対応

count

count 関数はノード集合に含まれるノードの数を数え、その整数を返します。

構文

count( node-set )

引数

node-set

カウント対象のノード集合。

返値

ノード集合に含まれるノードの数を表す整数。

仕様書

XPath 1.0 4.1

Gecko の対応

対応済み。

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