description

# format method Null safety

String format (

1. DateTime date

)

Format a date according to RFC-1123, e.g. `Thu, 1 Jan 1970 00:00:00 GMT`.

## Implementation

    static String format(DateTime date) {
      const List wkday = const ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"];
      const List month = const [
        "Jan",
        "Feb",
        "Mar",
        "Apr",
        "May",
        "Jun",
        "Jul",
        "Aug",
        "Sep",
        "Oct",
        "Nov",
        "Dec"
      ];

      DateTime d = date.toUtc();
      StringBuffer sb = new StringBuffer()
        ..write(wkday[d.weekday - 1])
        ..write(", ")
        ..write(d.day <= 9 ? "0" : "")
        ..write(d.day.toString())
        ..write(" ")
        ..write(month[d.month - 1])
        ..write(" ")
        ..write(d.year.toString())
        ..write(d.hour <= 9 ? " 0" : " ")
        ..write(d.hour.toString())
        ..write(d.minute <= 9 ? ":0" : ":")
        ..write(d.minute.toString())
        ..write(d.second <= 9 ? ":0" : ":")
        ..write(d.second.toString())
        ..write(" GMT");
      return sb.toString();
    }