Does regex contain case sensitive?

By default, the comparison of an input string with any literal characters in a regular expression pattern is case sensitive , white space in a regular expression pattern is interpreted as literal white-space characters, and capturing groups in a regular expression are named implicitly as well as explicitly.15 Eyl 2021

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What is called case-sensitive?

Definition of case-sensitive : requiring correct input of uppercase and lowercase letters Having the Caps Lock key on accidentally can also lead to a frustrating series of “wrong password” alerts when trying to use a case-sensitive password for your office network or Internet provider.—

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