f8/sdk/dart/package-fuchsia_inspect_inspect/Node/byteDataProperty.md

# byteDataProperty method




    *[<Null safety>](https://dart.dev/null-safety)*




[ByteDataProperty](../../package-fuchsia_inspect_inspect/ByteDataProperty-class.md)? byteDataProperty
(String name)





<p>Returns a <a href="../../package-fuchsia_inspect_inspect/ByteDataProperty-class.md">ByteDataProperty</a> with <code>name</code> on this node.</p>
<p>If a <a href="../../package-fuchsia_inspect_inspect/ByteDataProperty-class.md">ByteDataProperty</a> with <code>name</code> already exists and is not deleted,
this method returns it.</p>
<p>Otherwise, it creates a new property initialized to the empty
byte data container.</p>
<p>Throws <a href="../../package-fuchsia_inspect_inspect/InspectStateError-class.md">InspectStateError</a> if a non-deleted property with <code>name</code> already exists
but it is not a <a href="../../package-fuchsia_inspect_inspect/ByteDataProperty-class.md">ByteDataProperty</a>.</p>



## Implementation

```dart
ByteDataProperty? byteDataProperty(String name) {
  if (_writer == null) {
    return ByteDataProperty.deleted();
  }
  if (_properties.containsKey(name)) {
    if (_properties[name] is! ByteDataProperty) {
      throw InspectStateError("Can't create ByteDataProperty named $name;"
          ' a different type exists.');
    }
    return _properties[name] as ByteDataProperty?;
  }
  return _properties[name] = ByteDataProperty._(name, this, _writer!);
}
```