September 2019
Beginner
512 pages
12h 52m
English
Content preview from Flutter for Beginners
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Dart operators
In Dart, operators are nothing more than methods defined in classes with a special syntax. So, when you use operators such as x == y, it is as though you are invoking the x.==(y) method to compare equality.
As you might have noted, we are invoking a method on x, which means x is an instance of a class that has methods. In Dart, everything is an Object instance; any type you define is also an Object instance. There's more on that in the Introduction to OOP in Dart section.
This concept means that operators can be overridden so that you can write your own logic for them. Again, if you have some experience in Java, C#, JavaScript, or similar languages, you can skip most of the operators, as they are very similar in several languages. ...
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