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C# Intermediate C# Polymorphism Virtual Properties

Fredrik Rönnehag
Fredrik Rönnehag
2,342 Points
Posted by Fredrik Rönnehag
Fredrik Rönnehag
2,342 Points

Difference between => and =

In the code he writes a propery like this, public string Name => "";

Whats the difference between writing a property like that compared to, public string Name = "";

2 Answers

Robert Stefanic
Robert Stefanic
35,170 Points
Robert Stefanic
Robert Stefanic
35,170 Points

In C#, properties can have getters and setters.

=> is an expression that can be used to write getter-only properties.

When they use public string name => "";, it's saying that name is a property, which only has a getter, and that will return "" when called.

It'd be the same as writing:

public string name {
    get { return ""; }
}

But public string name => ""; is just a short hand version.

You can also use an expression in the more verbose property definition

public string name {
    get => "";
}

All of these ways of writing the getter are valid.

Robert Stefanic
Robert Stefanic
35,170 Points
Robert Stefanic
Robert Stefanic
35,170 Points

"Equal to" and "Bigger than" are mutually exclusive. A number can't be both "bigger than" and "equal" to something.

The Greater than or Equal To operation is >=, which differs from the lambda operator =>.

Using => where you're trying to do a comparison will most likely give you compiler errors.