writeAll method
override
Writes the elements of objects separated by separator.
Writes the string representation of every element of objects,
in iteration order, and writes separator between any two elements.
sink.writeAll(["Hello", "World"], " Beautiful ");
is equivalent to:
sink
..write("Hello");
..write(" Beautiful ");
..write("World");
Implementation
external void writeAll(Iterable<dynamic> objects, [String separator = ""]);