Is Delphi's "Contains" register a string helper?

Question

Delphi XE3 introduced the Contains string helper function, but the help / wiki file does not specify if case sensitive or not

+3

Kobus Smit May 12 '15 @ 2:16 am

1 answer

Kobus Smit · Answer 1 · 2015-05-12T02:16:41+0000

Yes, it is case sensitive.

Quick test:

ShowMessage('TEST'.Contains('t').ToString(TUseBoolStrs.True));

returns False

Use ToLowerInvariant or ToUpperInvariant to compare case insensitively:

ShowMessage('TEST'.ToLowerInvariant.Contains('t').ToString(TUseBoolStrs.True));