also<T> function

T also<T>(
  1. T value,
  2. void fn(
    1. T
    )
)

Runs fn for its side effects on value and returns value unchanged.

Mirrors Kotlin's also for inline configuration within an expression.

Example:

final list = also(<int>[], (l) => l.add(1)); // [1]

Audited: 2026-06-12 11:26 EDT

Implementation

T also<T>(T value, void Function(T) fn) {
  fn(value);
  return value;
}