diff --git a/documents/DeveloperGuide/CodeExamples.md b/documents/DeveloperGuide/CodeExamples.md
index 0e156bb896..fb43fae766 100644
--- a/documents/DeveloperGuide/CodeExamples.md
+++ b/documents/DeveloperGuide/CodeExamples.md
@@ -167,28 +167,22 @@ for elem in doc.traverseTree():
 ~~~{.js}
 import MaterialX from './JsMaterialXCore.js';
 
-MaterialX().then(async (_module) => {
-    // Get the MaterialX namespace.
-    const mx = _module.getMaterialX();
-
+MaterialX().then(async (mx) => {
     // Read a document from disk.
     const doc = mx.createDocument();
-    // Note: The xmlStr should be defined.
-    await mx.readFromXmlString(doc, xmlStr);
+    await mx.readFromXmlFile(doc, 'ExampleFile.mtlx');
 
     // Traverse the document tree in depth-first order.
     const elements = doc.traverseTree();
-    let elem = elements.next();
-    while(elem) {                
+    for (let elem of elements) {
         // Display the filename of each image node.
-        if (elem instanceof mx.Node) {
-            const param = elem.getParameter('file');
+        if (elem.isANode('image')) {
+            const param = elem.getInput('file');
             if (param) {
                 filename = param.getValueString();
                 console.log('Image node ' + elem.getName() + ' references ' + filename);
             }
         }
-        elem = elements.next();
     }
 }
 ~~~
@@ -300,4 +294,4 @@ MaterialX().then(async (_module) => {
         });
     });
 }
-~~~
\ No newline at end of file
+~~~
diff --git a/source/JsMaterialX/test/codeExamples.spec.js b/source/JsMaterialX/test/codeExamples.spec.js
index 92aefb5729..901fd3b592 100644
--- a/source/JsMaterialX/test/codeExamples.spec.js
+++ b/source/JsMaterialX/test/codeExamples.spec.js
@@ -95,7 +95,7 @@ describe('Code Examples', () => {
         for(let elem of elements) {
             elementCount++;
             // Display the filename of each image node.
-            if (elem instanceof mx.Node) {
+            if (elem.isANode('image')) {
                 nodeCount++;
                 const input = elem.getInput('file');
                 if (input) {
@@ -107,7 +107,7 @@ describe('Code Examples', () => {
             }
         }
         expect(elementCount).to.equal(21);
-        expect(nodeCount).to.equal(5);
+        expect(nodeCount).to.equal(1);
         expect(fileCount).to.equal(1);
     });