nonEmptyLineCount function
Determines the number of lines that are non-empty.
Implementation
int nonEmptyLineCount(String str) {
var _nonEmptyLineCount = 0;
str.where((e) => !e.isWhiteSpace).length;
for (var i = 1; i < str.length; i++) {
if (str[i] == '\n' && str[i - 1] != '\n') {
_nonEmptyLineCount++;
}
}
return _nonEmptyLineCount;
}