What is factory constructor?

A factory constructor is a constructor that can be used when you don’t necessarily want a constructor to create a new instance of your class . This might be useful if you hold instances of your class in memory and don’t want to create a new one each time (or if the operation of creating an instance is costly).8 Nis 2021

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What is Dart syntax?

The syntax is a basic dart program that consists of various elements such as a keyword, an identifier, a constant, a string literal, data types, and symbols . Eg: to represent numbers words and even decimals we can call the type of data. Each line is dart must end with the semicolon.27 Haz 2021

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What is oops in flutter?

That’s what object-oriented programming is all about: it gives us a nice way to model our data after real-world objects. It takes data, which dumb computers like, and adds some abstraction so smart humans can impose our will onto the computers. It makes code easy to read, easy to reason about, and highly reusable.

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