# PointRef API `PointRef` objects keep a specific point in a document synced over time as new operations are applied to the editor. It is created using the `Editor.pointRef` method. You can access their property `current` at any time for the up-to-date `Point` value. When you no longer need to track this location, call `unref()` to free the resources. The `affinity` refers to the direction the `PointRef` will go when a user inserts content at the current position of the `Point`. ```typescript interface PointRef { current: Point | null affinity: 'forward' | 'backward' | null unref(): Point | null } ``` - [Instance methods](point-ref.md#instance-methods) - [Static methods](point-ref.md#static-methods) - [Transform methods](point-ref.md#trasnform-methods) ## Instance methods #### `unref() => Point | null` Call this when you no longer need to sync this point. It also returns the current value. ## Static methods ### Transform methods #### `PointRef.transform(ref: PointRef, op: Operation)` Transform the point refs current value by an `op`. The editor calls this as needed, so normally you won't need to.