class Object {
var val = 0
init() {}
@discardableResult
func chain() -> Object {
self.val += 1
return self
}
}
let obj = Object()
print(obj.val)
//=> 0
let o = obj.chain().chain().chain()
print(o.val)
//=> 3
Last active
January 29, 2017 05:57
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Method Chain
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