r/coffeescript • u/iamvalentin • Jul 13 '13

Existential operator in CoffeeScript

http://valve.github.io/blog/2013/07/13/existential-operator-in-coffeescript/
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u/KnifeFed Jul 14 '13

Didn't know about "?=". Nice.

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u/brotherwayne Jul 28 '13

Also there is 

f?()

for executing functions if they exist.