Ｗｈｙ I can't find "IsNullorEmpty"?

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I want to use “IsNullorEmpty” but I can’t find it out.
How can I get one??

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@tomo007

You have to use this method like this.

String.IsNullOrEmpty(“varString”)

This method is used to check whether String is null or Empty.

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@lakshman
Thank you for your reply. I can use “IsNullorEmpty” method.
I use like below when I use old version of Uipath.
var_String.IsNullorEmpty

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