What is factory constructor flutter?

A factory constructor invokes another constructor . … A normal constructor always returns a new instance of the class. A factory constructor is permitted to return an existing instance, an instance of a derived class, or null. (However, some people dislike returning null from a factory constructor.)

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What is factory constructor flutter?

A factory constructor invokes another constructor . … A normal constructor always returns a new instance of the class. A factory constructor is permitted to return an existing instance, an instance of a derived class, or null. (However, some people dislike returning null from a factory constructor.)

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What is factory keyword?

Factory keyword is used when implementing constructors that do not create new instances of the existing class . A factory constructor can return value from cache or from an instance of a sub-type. Factory constructor does not have access to this keyword.29 Mar 2020

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