splicing method

String splicing([
  1. String separator = ''
])

Splicing between collection elements. separator Separator between elements.

Implementation

String splicing([String separator = '']) {
  late final StringBuffer buffer = StringBuffer();
  if (isNotEmpty) {
    if (length == 1) {
      buffer.write(first);
    } else {
      buffer.writeAll(this, separator);
    }
  }
  return buffer.toString();
}