description

# WeakReference<T extends Object> constructor

WeakReference<T extends Object>(

1. T target

)

Creates a WeakReference pointing to the given `target`.

The `target` must be an object supported as an Expando key, which means `target` cannot be a number, a string, a boolean, a record, the `null` value, or certain other types of special objects.

## Implementation

    external factory WeakReference(T target);