Dart - Compress -GZIP vs ZLIB

20201004

import 'dart:convert';
import 'dart:io';

void main() {
  String data = '';
  for (int i = 0; i < 100; i++) {
    data = data + 'i love flutter\r\n';
  }

  List origin = utf8.encode(data);
  List compress = GZIP.encode(origin);
  List decompress = GZIP.decode(compress);
  String decode = utf8.decode(decompress);
  assert(data == decode);
  print('origin size :${origin.length} bytes');
  print('GZIP size: ${compress.length} bytes');
  print('decompress size: ${decompress.length} bytes');

  int encodeCompress(zipType) {
    List compress = zipType.encode(origin);
    int size = compress.length;
    return size;
  }

  print('---- GZIP vs ZLIB -----');
  print('GZIP size : ${encodeCompress(GZIP)}');
  print('ZLIB size : ${encodeCompress(ZLIB)}');
}

Performing hot restart...

Syncing files to device iPhone 11 Pro...

Restarted application in 87ms.

flutter: origin size :1600 bytes

flutter: GZIP size: 50 bytes

flutter: decompress size: 1600 bytes

flutter: ---- GZIP vs ZLIB -----

flutter: GZIP size : 50

flutter: ZLIB size : 38