934 B
934 B
BinaryHeap
Basic binary heap tree using linked lists
Usage
var BinaryHeap = require('binaryheap');
var heap = new BinaryHeap();
var a = [6, 5, 3, 1, 8, 7, 2, 4];
a.forEach(function (k) {
heap.insert({ value: k }, k);
});
heap.print();
while (heap.length) {
console.log('popping', heap.pop().value);
}
By default it stores as a max-heap, if you pass truthy to the constructor though it will behave as a min-heap.
Methods
insert(obj, key)-- obj can be any new or existing object, and key is any value that behaves sanely with>or<pop()-- removes and returns the maximum or minimum object from the root of the heapremove(obj)-- removes a previously inserted object from the heapprint()-- mostly for debugging purposes prints a graphviz dot style digraph to confirm ordering
Members
length-- number of objects currently in the heap