getNumericOnly method
Returns only numbers from a string trim Whitespaces
Implementation
String getNumericOnly(String string, {bool aFirstWordOnly = false}) {
String numericOnlyString = '';
for (var i = 0; i < string.length; i++) {
if ((string[i].isDigit())) {
numericOnlyString += string[i];
}
if (aFirstWordOnly && numericOnlyString.isNotEmpty && string[i] == " ") {
break;
}
}
return numericOnlyString;
}