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mahmudahsan/defer.swift

Created December 22, 2017 16:44
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cleanup actions using defer
Raw
defer.swift
func readDesc(_ desc:inout String) throws {
let newDesc = desc
defer {
desc = ""
}
throw SampleError.sample2(message: "cool error")
print(newDesc)
}
var desc = "Life is cool and play is a tool!"
try? readDesc(&desc)
print("Empty: \(desc)")
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