NutrimentsHelper class

Helper class for energy computations and checks

Constructors

NutrimentsHelper()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

calculateEnergy(Nutriments nutriments, {PerSize perSize = PerSize.oneHundredGrams}) → double?

Calculates the energy for 100g in kJ. ! should be used cautiously (might not be displayed to the end user) ! source : https://en.wikipedia.org/wiki/Food_energy

checkEnergyCoherence(Nutriments nutriments, double marginPercentage, {PerSize perSize = PerSize.oneHundredGrams}) → bool

Checks if the stated energy value is within a margin of error a use case for this is before saving a product, check if the values aren't incoherent.

fromKCalToKJ(double kCal) → double

fromKJtoKCal(double kJ) → double

getEnergyAsKCal(Nutriments nutriments) → double

Gets the energy value (stored in kJ) converted in kCal.