Adds values to the end of a collection.
For purposes of genericity, collections that have an intrinsic relative order
for their values, like a SortedSet, support the push method but do not
necessarily add the new values to the end of the collection.
As of version 1.1.0 and 2.0.1, Heap does not yet support push for multiple
values.
var array = [1, 2, 3]; array.push(6, 4); array
var sortedSet = new SortedSet([2, 8, 5]); sortedSet.toArray(); sortedSet.push(1, 6, 14); sortedSet.toArray();
Removes a value from the end of a collection, and returns that value.
Adds values to the beginning of a collection.
Replaces the value at the end of a collection, the value that would be returned by pop().