You can do that in different ways:
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“how to take input from user in dart using dartpad” Code Answer
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How to take input in Dart. To take input from a user in Dart, you need to import the dart:io library . The input is taken through the console using the . readLineSync() function.
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Conditional Statements
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Ways to Use If Else Statement in Flutter Widget
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How to use Conditional Statement (IF ELSE) on Child Widget in…
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Dart Function with parameter and return value
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