getWithIndex method

T getWithIndex(
  1. int index, {
  2. T orElse(
    1. int index
    )?,
})

Implementation

T getWithIndex(int index, {T Function(int index)? orElse}) {
  if (orElse == null) {
    return this[index];
  }
  return (index < 0 || index >= length) //
      ? orElse(index)
      : this[index];
}