diff --git a/doc/dom.md b/doc/dom.md
index 1bbfed9b..def1f4ee 100644
--- a/doc/dom.md
+++ b/doc/dom.md
@@ -64,7 +64,7 @@ Once you have an element, you can navigate it with idiomatic C++ iterators, oper
 
 * **Extracting Values (with exceptions):** You can cast a JSON element to a native type: `double(element)` or
   `double x = json_element`. This works for double, uint64_t, int64_t, bool,
-  dom::object and dom::array. An exception is thrown if the cast is not possible.
+  dom::object and dom::array. An exception (`simdjson::simdjson_error`) is thrown if the cast is not possible.
 * **Extracting Values (without exceptions):** You can use a variant usage of `get()` with error codes to avoid exceptions. You first declare the variable of the appropriate type (`double`, `uint64_t`, `int64_t`, `bool`,
   `dom::object` and `dom::array`) and pass it by reference to `get()` which gives you back an error code: e.g.,
   ```c++
diff --git a/tests/ondemand/ondemand_readme_examples.cpp b/tests/ondemand/ondemand_readme_examples.cpp
index 25606dfe..ff0698e7 100644
--- a/tests/ondemand/ondemand_readme_examples.cpp
+++ b/tests/ondemand/ondemand_readme_examples.cpp
@@ -246,11 +246,15 @@ bool using_the_parsed_json_4() {
 
   // Parse and iterate through an array of objects
   for (ondemand::object points : parser.iterate(points_json)) {
+    // Iterating through an object, you iterate through key-value pairs (a 'field').
     for (auto point : points) {
+      // Get the key corresponding the the field 'point'.
       cout << "id: " << std::string_view(point.unescaped_key()) << ": (";
-      cout << point.value()["x"].get_double() << ", ";
-      cout << point.value()["y"].get_double() << ", ";
-      cout << point.value()["z"].get_int64() << endl;
+      // Get the value corresponding the the field 'point'.
+      ondemand::object xyz = point.value();
+      cout << xyz["x"].get_double() << ", ";
+      cout << xyz["y"].get_double() << ", ";
+      cout << xyz["z"].get_int64() << endl;
     }
   }