What is the command for the shortcut _?

Question

I was trying to look up what _? does but I couldn't find anything in the documentation and it's hard to look up symbolic strings because most search engines use these symbols internally.

My favorite cheat-sheet is here. Look under Patterns. – bbgodfrey Jan 23 '15 at 21:08 — bbgodfrey, Jan 23 '15 at 21:08
Closed as a duplicate. Please see specifically: (25616) – Mr.Wizard Jan 23 '15 at 22:33 — Mr.Wizard, Jan 23 '15 at 22:33

score 4 · Accepted Answer · answered Jan 23 '15 at 21:11

4

_? is not a single operator. _ and ? are two separate things:

_ is Blank, relatively easily found using the documentation centre.

? is PatternTest, a bit harder to find.

answered Jan 23 '15 at 21:11

Szabolcs

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Would you object to my closing this as a duplicate of (18393)? – Mr.Wizard Jan 23 '15 at 22:23
@Mr.Wizard I think it should be closed. – Szabolcs Jan 23 '15 at 22:28

What is the command for the shortcut _?

1 Answers1