[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [XPriorityQueueNode](./x-components.xpriorityqueuenode.md) > [key](./x-components.xpriorityqueuenode.key.md) ## XPriorityQueueNode.key property The key to store the element in the queue. **Signature:** ```typescript key: keyof SomeRecord; ```