XSLTProcessor: reset() method

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This feature is well established and works across many devices and browser versions. Its been available across browsers since July 2015.

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The reset() method of the XSLTProcessor interface removes all parameters (<xsl:param>) and the XSLT stylesheet from the processor. The XSLTProcessor will then be in its original state when it was created.

Syntax

reset()

Parameters

None.

Return value

None (undefined).

Examples

Using reset()

This example demonstrates how the reset() method allows the same XSLTProcessor instance to be reused for multiple transformations with different stylesheets.

HTML

html

<div id="result"></div>

JavaScript

const xmlString1 = `
<items>
  <item>Item A</item>
  <item>Item B</item>
</items>
`;

const xsltString1 = `
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <ul>
      <xsl:for-each select="items/item">
        <li><xsl:value-of select="."/></li>
      </xsl:for-each>
    </ul>
  </xsl:template>
</xsl:stylesheet>
`;

const xmlString2 = `
<fruits>
  <fruit>Apple</fruit>
  <fruit>Banana</fruit>
</fruits>
`;

const xsltString2 = `
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <ol>
      <xsl:for-each select="fruits/fruit">
        <li><xsl:value-of select="."/></li>
      </xsl:for-each>
    </ol>
  </xsl:template>
</xsl:stylesheet>
`;

const parser = new DOMParser();
const xmlDoc1 = parser.parseFromString(xmlString1, "application/xml");
const xsltDoc1 = parser.parseFromString(xsltString1, "application/xml");
const xmlDoc2 = parser.parseFromString(xmlString2, "application/xml");
const xsltDoc2 = parser.parseFromString(xsltString2, "application/xml");

const xsltProcessor = new XSLTProcessor();

// Import the first XSLT stylesheet and transform the first XML
xsltProcessor.importStylesheet(xsltDoc1);
let resultFragment = xsltProcessor.transformToFragment(xmlDoc1, document);
document.getElementById("result").appendChild(resultFragment);

// Reset the XSLTProcessor instance
xsltProcessor.reset();

// Import the second XSLT stylesheet and transform the second XML
xsltProcessor.importStylesheet(xsltDoc2);
resultFragment = xsltProcessor.transformToFragment(xmlDoc2, document);
document.getElementById("result").appendChild(document.createElement("hr"));
document.getElementById("result").appendChild(resultFragment);