compressToBase64Sync static method
Synchronously produces ASCII UTF-16 strings representing the original
/ string encoded in Base64 from input
.
Can be decompressed with decompressFromBase64.
This works by using only 6bits of storage per character. The strings produced are therefore 166% bigger than those produced by compress.
Implementation
static String? compressToBase64Sync(String? input) {
final res = _compress(input, 6, (a) => _keyStrBase64[a]);
if (res == null) return null;
switch (res.length % 4) {
case 0:
return res;
case 1:
return res + "===";
case 2:
return res + "==";
case 3:
return res + "=";
}
return null;
}