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by steventhedev
4218 days ago
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FYI - the ampersand syntax is only in function calls, so the following will fail: &set.call(1)
Whereas this will not: (1..30).select(&set)
Generally speaking, & is syntactic sugar for .to_proc, but only within function calls. |
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It's not exactly that. & is the syntax to pass a variable as a block to a method. And ruby will implicitly call to_proc on the object it receive as a block.
I know it seems pedantic, but there is a difference.