join method

  1. @override
String join([
  1. String separator = ""
])
override

Converts each element to a String and concatenates the strings.

Iterates through elements of this iterable, converts each one to a String by calling Object.toString, and then concatenates the strings, with the separator string interleaved between the elements.

Example:

final planetsByMass = <double, String>{0.06: 'Mercury', 0.81: 'Venus',
  0.11: 'Mars'};
final joinedNames = planetsByMass.values.join('-'); // Mercury-Venus-Mars

Implementation

@override
String join([String separator = ""]) {
  final buffer = StringBuffer();
  bool first = true;
  for (final element in this) {
    if (!first) {
      buffer.write(separator);
    }
    buffer.write(element.toString());
    first = false;
  }
  return buffer.toString();
}