Swift Language Loops Sequence Type forEach block
Example
A type that conforms to the SequenceType protocol can iterate through it's elements within a closure:
collection.forEach { print($0) }
The same could also be done with a named parameter:
collection.forEach { item in
print(item)
}
*Note: Control flow statements (such as break or continue) may not be used in these blocks. A return can be called, and if called, will immediately return the block for the current iteration (much like a continue would). The next iteration will then execute.
let arr = [1,2,3,4]
arr.forEach {
// blocks for 3 and 4 will still be called
if $0 == 2 {
return
}
}
