What to call this pattern of calling a method on each object?

Question

In another answer, I saw an interesting syntax for calling a method on each object in a collection in Rails (or is this really just Ruby?) I tried searching for it but I couldnt find any documentation on it.

reports.map(&:reload)

Is &: an operator? If not, what is it? What is it called? What else can be done with the &: operator?

score 1 · Accepted Answer · answered Dec 18 '13 at 18:33

1

&: is called symbol_to_proc

And it is ruby not rails specific

Relevant link

http://pragdave.pragprog.com/pragdave/2005/11/symbolto_proc.html

answered Dec 18 '13 at 18:33

bjhaid

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What to call this pattern of calling a method on each object?

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