How to capitalize the TextField value first letter of the first word for each sentence?

Question

Is such a thing possible? And is it possible to follow these rules?

similar questions have been asked before but they are forsimple capital the first letter of first word and not more

Answer 1

Option 1: You can use textCapitalization property of a TextField widget. Also do take a reference for detailed API info here Text Capitalization Official API - https://api.flutter.dev/flutter/services/TextCapitalization-class.html

TextField(
        textCapitalization: TextCapitalization.characters,
    )

here you can use couple of options: TextCapitalization.words, TextCapitalization.sentences

Option 2: Using .toUpperCase() method After String put .toUpperCase()

var string = "text".toUpperCase()