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underscore

why we use underscore only with variable identifier and can't use any type such as @,$??

3rd Mar 2017, 3:45 PM
Mahmoud Gebrel
Mahmoud Gebrel - avatar
1 Réponse
+ 11
Just sytax rules for this language. Some languages(Like ruby) allows !@ and some more things in identifiers
3rd Mar 2017, 4:17 PM
WittyBit
WittyBit - avatar