Use Grand Central Dispatch to modify the following method definition so that reallyLongCalculation() will be performed in
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Question:
Use Grand Central Dispatch to modify the following method definition so that reallyLongCalculation() will be performed in a background thread:
func buttonPressed() {
var result: Int
result = reallyLongCalculation()
resultTextField.text = "(result)"
}
Expert Answer:
You can use Grand Central Dispatch GCD in Swift to perform reallyLongCalculation in a background thr... View the full answer
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