groupBy method

LazyGroupBy groupBy(
  1. Iterable<Expr> keys, {
  2. bool maintainOrder = false,
})

Implementation

LazyGroupBy groupBy(Iterable<Expr> keys, {bool maintainOrder = false}) {
  final values = List<Expr>.unmodifiable(keys);
  for (final value in values) {
    _runtime._requireExpr(value);
  }
  return LazyGroupBy._(this, values, maintainOrder);
}