– 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

Output

output2

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