how to add two nullable values

# getting-started

[techie01]

how to add two nullable values

[menegatti]

either with the elvis operator ?: or with regular null checks

[menegatti]

depends a bit on what you expect

[techie01]

var a:Int?=100 var bInt?=200 i want a+b

[spand]

a?.let { b?.let { a + b} }

[menegatti]

usually the first question is, do they need to be nullable?

[techie01]

it is giving error

[voddan]

a!! + b!!