fromAscii function
Should be called to get hex representation (prefixed by 0x) of ascii string
Implementation
String fromAscii(String stringValue) {
ArgumentError.checkNotNull(stringValue);
var hexString = ''; // eslint-disable-line
for (var i = 0; i < stringValue.length; i++) {
// eslint-disable-line
var code = stringValue.codeUnitAt(i);
var n = hex.encode([code]);
hexString += n.length < 2 ? "0${n}" : n;
}
return "0x${hexString}";
}