Change text format without showing tag

[tuankm123]

Hi all,
I would like to change text format without showing tag, for example, when I select "example" and click B button to make it bold, this text will be bold, not show example . How can I do it?

Thanks

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I got it. Thanks

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I did enable WYSIWYG to do like that. Everything is working, but only <strike> BBCode is not working. When I select a text and click on <strike> button, it show <strike>text</strike>, not showing text

Can you tell me how can I should do?

[veenuisthebest]

BBCODES are like this [strike] and not <strike>