16 lines
516 B
Dart
16 lines
516 B
Dart
import 'dart:math';
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double _log10(num x) => log(x) / ln10;
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extension FileFormatter on num {
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String readableFileSize({bool base1024 = true}) {
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if (this <= 0) return "0";
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final base = base1024 ? 1024 : 1000;
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final units = base1024
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? ["Bi", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"]
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: ["B", "KB", "MB", "GB", "TB", "PB", "EB"];
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final digitGroups = (_log10(this) / _log10(base)).floor();
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return "${(this / pow(base, digitGroups)).toStringAsFixed(2)} ${units[digitGroups]}";
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}
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}
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