What means let in lamda expression for livedata observable?

[Android Central Question]

I was wondering I someone can explane me the function let in a lamda expression with livedata, is this just to print the lamda expression? Some people use it to get no null pointer exceptions anymore .. {value-> value?.let{do something with 'it'}}

 

[belodion]

If this is developer stuff, you'd better say, so that I can move it to our Developers forums. Whatever it is, it sounds too technical for the AAQ forum.

 

[B. Diddy]

I just went ahead and moved it to the Software Development forum.

 

[Rukbat]

https://stackoverflow.com/questions...bda-expression-for-livedata-observable-kotlin kind of fully explains both of your questions (what 'let' is used for and why it doesn't allow null pointers [or null expressions of any kind]).