Sprint function
Returns concatenated values as a string (no trailing newline).
Like Print but returns the string instead of printing.
final s = Sprint('Hello, ', 'world'); // 'Hello, world'
Implementation
String Sprint(
Object? v1, [
Object? v2,
Object? v3,
Object? v4,
Object? v5,
Object? v6,
]) => SprintAll([v1, v2, v3, v4, v5, v6].where((it) => it != null));