How to Parse a String into a Number with Dart?

– Flutter provide int.parse() and int.tryParse() method.

1. int.parse()

– We use this method when we are sure like string contains only numbers. If string contain alphabet then it throws a Format Exception.

. int.tryParse()

– We use this method when we are not sure like string may not contain only numbers.We can set default value if string may contain alphabet.

Example:-

Output