[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [BaseXPriorityQueue](./x-components.basexpriorityqueue.md) > [(constructor)](./x-components.basexpriorityqueue._constructor_.md) ## BaseXPriorityQueue.(constructor) Creates a new [XPriorityQueue](./x-components.xpriorityqueue.md). **Signature:** ```typescript constructor(comparatorFn?: NumberComparatorFn); ``` ## Parameters

Parameter	Type	Description
comparatorFn	[NumberComparatorFn](./x-components.numbercomparatorfn.md)	_(Optional)_ Comparator - the comparator that will be used to order this queue. By default, the elements will be sorted in descending order (an element with priority 1 will be higher in the queue than another with priority 0).