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Add example, update description (#103)
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## 1.0.2-dev | ||
## 1.0.2 | ||
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* Update description. | ||
* Add example. | ||
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## 1.0.1 | ||
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import 'package:logging/logging.dart'; | ||
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final log = Logger('ExampleLogger'); | ||
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/// Example of configuring a logger to print to stdout. | ||
/// | ||
/// This example will print: | ||
/// | ||
/// INFO: 2021-09-13 15:35:10.703401: recursion: n = 4 | ||
/// INFO: 2021-09-13 15:35:10.707974: recursion: n = 3 | ||
/// Fibonacci(4) is: 3 | ||
/// Fibonacci(5) is: 5 | ||
/// SHOUT: 2021-09-13 15:35:10.708087: Unexpected negative n: -42 | ||
/// Fibonacci(-42) is: 1 | ||
void main() { | ||
Logger.root.level = Level.ALL; // defaults to Level.INFO | ||
Logger.root.onRecord.listen((record) { | ||
print('${record.level.name}: ${record.time}: ${record.message}'); | ||
}); | ||
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print('Fibonacci(4) is: ${fibonacci(4)}'); | ||
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Logger.root.level = Level.SEVERE; // skip logs less then severe. | ||
print('Fibonacci(5) is: ${fibonacci(5)}'); | ||
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print('Fibonacci(-42) is: ${fibonacci(-42)}'); | ||
} | ||
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int fibonacci(int n) { | ||
if (n <= 2) { | ||
if (n < 0) log.shout('Unexpected negative n: $n'); | ||
return 1; | ||
} else { | ||
log.info('recursion: n = $n'); | ||
return fibonacci(n - 2) + fibonacci(n - 1); | ||
} | ||
} |
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