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kotlinlang

Hello, has any way to improve this conditional?
`read.cutOn != meterCut &amp;&amp; (meter.cutDate != null || readDate.after(meter.cutDate))`

vinicius.rob.cunha: 

This part:
```
(meter.cutDate != null || readDate.after(meter.cutDate))
```

Does the logic mean, if `meter.cutDate` is `null`, do a `readDate.after(null)` ?
Not sure I follow the logic

Was just wondering if that shouldn’t have been an `&amp;&amp;` instead, then it would be possible to simplify it.

`read.cutOn != meterCut &amp;&amp; (meter.cutDate == null || readDate.after(meter.cutDate))`

the part in the brackets , there are several options. `let` should help here:

Haven’t tested this code, try it first:
```
meter.cutDate?.let { readDate.after(it) } ?: true
```

<http://beust.com/weblog/2016/01/14/a-close-look-at-kotlins-let/>

amazing, i didn't know let. Thanks :wink:

The way your code is structured right now is actually more readable than using `let`

I think you can also use `then` which is a more readable `let`

<@U4QQQ0J1H> Do you have an example using `then`. Kinda hard Google for an example when it’s such a common word.

<@U169UQEKE>  Sorry, I meant use `also` :stuck_out_tongue: as ```meter.cutDate?.also{ readDate.after(it) } ?: true```