Within an XSLT stylesheet, the processor copies literal result elements until it encounters an instruction element. Which of the following represents a valid XSLT instruction form that causes iteration over a node-set?

Difficulty: Easy

Correct Answer: {for-each select}

Explanation:


Introduction / Context:
XSLT stylesheets can contain literal result elements (e.g., HTML tags) and XSLT instruction elements (e.g., xsl:for-each). The processor copies literal content until it reaches an instruction that changes processing behavior. This question asks you to recognize the iteration instruction form.



Given Data / Assumptions:

  • We are working inside an XSLT stylesheet.
  • We expect an instruction that iterates over selected nodes.
  • The canonical instruction is xsl:for-each with a select attribute.


Concept / Approach:
The xsl:for-each instruction iterates over a node-set defined by its select XPath expression, changing the processing context for each node matched.



Step-by-Step Solution:

Identify the relevant XSLT instruction for iteration.Map it to the general form “for-each select”.Select “{for-each select}”.


Verification / Alternative check:
Any basic XSLT tutorial shows xsl:for-each select="path/to/nodes".



Why Other Options Are Wrong:

  • SQL SELECT ... FROM ... WHERE: SQL, not XSLT.
  • {item, action}: not an XSLT construct.
  • ...<\HTML>: literal result elements, not an instruction.


Common Pitfalls:
Confusing XPath expressions (used inside select) with SQL query syntax.



Final Answer:
{for-each select}

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