This API documentation is for Ballerina 1.2.0. View API documentation for the latest release.

Module : lang.stream

Module Overview

This module provides lang library operations on stream values defined by the language specification 2020R1.

Functions

close

Closes a stream.

filter

Selects the members from a stream for which a function returns true.

forEach

Applies a function to each member of a stream.

iterator

Returns an iterator over a stream.

map

Applies a function to each member of a stream and returns a stream of the results.

next

Returns the next element in the stream wrapped in a record or () if the stream ends.

reduce

Combines the members of a stream using a combining function.