Should I use type inference?

Very simple question here.

Should I do this?

val re1 = txtRe1.text.toString().toIntOrNull() ?: 0 

Or this?

val re1: Int = txtRe1.text.toString().toIntOrNull() ?: 0 

Or for example:

val spinner: Spinner = findViewById(R.id.spinner) 

or

val spinner = findViewById(R.id.spinner) 

Thanks.

submitted by /u/HelloWorldzik
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