[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [XPriorityQueue](./x-components.xpriorityqueue.md) ## XPriorityQueue interface Data structure to store a list of entries ordered by their priority. **Signature:** ```typescript export interface XPriorityQueue ``` ## Properties

Property	Modifiers	Type	Description
[pop](./x-components.xpriorityqueue.pop.md)		() => [XPriorityQueueNode](./x-components.xpriorityqueuenode.md)<SomeRecord, SomeData> \| undefined	Retrieves and removes the head [node](./x-components.xpriorityqueuenode.md) of the queue.
[push](./x-components.xpriorityqueue.push.md)		(key: keyof SomeRecord, priority: number, data?: SomeData) => void	Inserts an element into the queue in the correct position based on its priority.
[size](./x-components.xpriorityqueue.size.md)		() => number	Retrieves the number of elements stored in the queue.