Want to efficiently initialize multiple final fields that depend on the same calculation in Dart? Calculate the values in a factory constructor:
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class _IntegralCurve extends Curve { static double delta = 0.01; factory _IntegralCurve(Curve original) { final integral = calculateIntegral(original), final values = calculateNormalizedValues(original); return _IntegralCourve._(original, integral, values); } _IntegralCurve._(this.original, this.integral, this.values); |
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