Created
June 4, 2014 21:39
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| “class StepCounter { | |
| var totalSteps: Int = 0 { | |
| willSet(newTotalSteps) { | |
| println("About to set totalSteps to \(newTotalSteps)") | |
| } | |
| didSet { | |
| if totalSteps > oldValue { | |
| println("Added \(totalSteps - oldValue) steps") | |
| } | |
| } | |
| } | |
| }” | |
| Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks. https://itun.es/us/jEUH0.l |
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