(Node.js) Demonstrates the ChilkatPath XML Method

Demonstrates how to use the ChilkatPath method. This example uses the XML sample file pigs.xml. The pigs.xml file contains this content:

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    var xml = new chilkat.Xml();

    var success = xml.LoadXmlFile("qa_data/xml/pigs.xml");
    if (success !== true) {
        console.log(xml.LastErrorText);
        return;
    }

    // Get the content of the "species" node for the 1st animal:
    var result;
    result = xml.ChilkatPath("animal|species|*");
    // Output should be "pot belly pig"
    console.log(result);

    // Get the content of the "type" node for the 2nd animal:
    // Indexing begins at 0.  Therefore, the 2nd direct child having
    // the tag "animal" is at index 1
    result = xml.ChilkatPath("animal[1]|type|*");
    // Output should be "House Pig"
    console.log(result);

    // Find the pig having the name "Nigel" and display the
    // birth date.  To do this, we'll navigate to the node having
    // tag="name" with the exact content "Nigel", then navigate up, 
    // and finally navigate back down to the "birth" node:
    result = xml.ChilkatPath("/C/name,Nigel|..|birth|*");
    // Output should be "June, 1991"
    console.log(result);

    // Navigate to the 1st animal's picture and print the filename,
    // description, and caption.
    // The "$" updates the caller's internal pointer to reference
    // the node that is the result of evaluating the path.
    // An empty string is returned for success, and a NULL/nil/0
    // pointer (reference) is returned on failure.  
    result = xml.ChilkatPath("animal|picture|$");
    if (xml.LastMethodSuccess !== true) {
        console.log("Failed to navigate to animal|picture.");
        return;
    }

    // Display the contents of the file/description/caption child nodes
    console.log("Picture Info:");
    console.log(xml.GetChildContent("file"));
    console.log(xml.GetChildContent("description"));
    console.log(xml.GetChildContent("caption"));

    // Return back to the root of the XML document:
    xml.GetRoot2();

    // Display the value of the "spay-neuter" attribute of the 1st animal:
    console.log("----");
    result = xml.ChilkatPath("animal|gender|(spay-neuter)");
    console.log(result);

}

chilkatExample();