AllMatch test if every element are all match the Predicate.

AnyMatch test if any element matches the Predicate.

Return the element at index.

Returns the average of all the elements in the iterator.

Collecting via Collector.

Returns true if the target is included in the iterator.

Count return the count of elements in the Seq.

Distinct remove duplicate elements.

Filter keep elements which satisfy the Predicate.

First find the first element in the Seq.

FlatMap transform each element in Seq[T] to a new Seq[R].

Fold accumulate each element using the BinaryFunction starting from the initial value.

ForEach consume every elements in the Seq.

Ruturns true if the count of Iterator is 0.

Ruturns true if the count of Iterator is 0.

IsSorted 对序列中的元素是否排序.

Return the right element.

Limit limits the number of elements in Seq.

Map transform the element use Fuction.

Return the maximum value of all elements of the iterator.

Return the maximum value of all elements of the iterator.

Calculate the Mean of a slice of floats.

Return the minimum value of all elements of the iterator.

Peek visit every element in the Seq and leave them on the Seq.

Returns the product of all the elements in the iterator.

Reduce accumulate each element using the binary operation.

Skip drop some elements of the Seq.

Sorted sort elements in the Seq by Comparator.

Returns the sum of all the elements in the iterator.

Returns the sum of all the elements in the iterator.

to built-in map.

Splitting an iterator whose elements are pair into two lists.