# I'm confused with class `get` `set` and `prop`

We have 2 places in documentation describing it:

[A]
[https://imba.io/docs/basic-syntax/classes#computed-properties](https://imba.io/docs/basic-syntax/classes#computed-properties)

[B]
[https://imba.io/docs/basic-syntax/operators#keywords-set](https://imba.io/docs/basic-syntax/operators#keywords-set)

__[A]__ describes:

`get`
> The get syntax binds an object property to a function that will be
> called when that property is looked up

But there's no bind. If you call `get` the same as property you get into
infinite loop. If you call it differently - like in examples on website
which doesn't support the description clame -
then it works like a regular function and no difference between using
`get` or `def` other than self documenting syntax.

__1. What's the differenece between `get` and `def`?__

`set`
> Using set you can define a function that will be called when there is
> an attempt to set that property.

Sounds clear but then example doesn't show it and then it's not clear
until you check it. Proper example:

```coffee
class Rect
    sides = 0
    width = 0
    height = 0

    set sides size
        width = size
        height = size
```

I would expect different behaviour from `set` - method is called on
value change > process value > returns processed value > applies
returned value instead. Probably the thing which is proposed in
undocumented section as `$set` but with no practical syntax.

__2. I see no consistency between `get` and `set` as set binds on write
and get doesn't bind on lookup.__

No `prop` description or usage in any example of Class documentation.

__[B]__ describes `prop` and use it in examples:

`prop`
>A prop allows a tag property to be set from the outside

But you have the same behaviour without keyword prop.

__3. What's the difference between following?__
```coffee
class A
    prop a = 1
        
# and

class B
    b = 1
```