3 ms·
A return statement in a block is more or less a call to an escape continuation. So is break. Most programmers don't know what an escape continuation is, though
by seliopou 14y ago
A return statement in a block is more or less a call to an escape continuation. So is break. Most programmers don't know what an escape continuation is, though once explained can use them. Even if they did, those escape continuations are captured implicitly. There's no reason to believe that people are just going to divine their meaning. And if they're new to Ruby, they're not going to understand what a block is, pretty much by definition. It's a feature that's pretty unique to Ruby.
- masklinn 14y ago> A return statement in a block is more or less a call to an escape continuation. So? > Most programmers don't know what an escape continuation is Not that they have any reason to care. > There's no reason to believe that people are just going to divine their meaning. I don't think I ever said that. > And if they're new to Ruby, they're not going to understand what a block is, pretty much by definition. It's a feature that's pretty unique to Ruby. It's not for any known value of "unique". Blocks are present in most C-like languages, and first-class blocks were introduced by Smalltalk.