emptyLineCount function
Counts the number of empty lines in str.
Implementation
int emptyLineCount(String str) {
var _emptyLineCount = 0;
for (var i = 0; i < str.length; i++) {
if (str[i] == '\n') {
if (i == 0) {
_emptyLineCount++;
} else if (str[i - 1] == '\n') {
_emptyLineCount++;
}
}
}
return _emptyLineCount + 1;
}