Swift How to ignore return value?

How to ignore return value?

 

Sometimes you might want to ignore the return value while in other cases you might use it.

 

In that situation, you can use @discardableResult attribute!

 

 

Let's see example.

 

When you call update function like below.

 

You will see warning :(

 

 

You might fix the warning like this.

 

But it's ugly code.

 

 

In that case, you could use @discardableResult attribute.

 

 

It will fix warning!

 

Happy coding :)