emojiFinder function
If isFirst = true, emojiFinder() will return true when the first of your input text is emoji.
Implementation
bool emojiFinder(
String text, {
bool isEmojiFirst = false,
}) {
String trimed = text.trim();
bool useEmoji = trimed.contains(_f);
if (!isEmojiFirst) return useEmoji;
if (trimed.isEmpty) return false;
return _f.hasMatch(trimed[0]);
}