XSLTProcessor: transformToDocument() method

transformToDocument(source)

<pre id="result"></pre>

const xmlString = `
<books>
  <book>
    <title>Book 1</title>
    <author>Author 1</author>
  </book>
  <book>
    <title>Book 2</title>
    <author>Author 2</author>
  </book>
</books>
`;

const xsltString = `
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" indent="yes"/>
  <xsl:template match="/">
    <catalog>
      <xsl:for-each select="books/book">
        <item>
          <name><xsl:value-of select="title"/></name>
          <writer><xsl:value-of select="author"/></writer>
        </item>
      </xsl:for-each>
    </catalog>
  </xsl:template>
</xsl:stylesheet>
`;

const parser = new DOMParser();
const xmlDoc = parser.parseFromString(xmlString, "application/xml");
const xsltDoc = parser.parseFromString(xsltString, "application/xml");

const xsltProcessor = new XSLTProcessor();
xsltProcessor.importStylesheet(xsltDoc);

// Perform the transformation, returning the result as a new XML document
const resultDoc = xsltProcessor.transformToDocument(xmlDoc);

// Serialize the result document to a string
const serializer = new XMLSerializer();
const resultString = serializer.serializeToString(resultDoc);

// Display the transformed XML in the page
document.getElementById("result").textContent = resultString;