BuboFlash - helps with learning

Edited, memorised or added to reading queue

Do you want BuboFlash to help you learning these things? Click here to log in or create user.

Open it
You can't reassign vals

cannot see any pdfs

#odersky-programming-in-scala-2ed #scala

The only control structures in Scala are if, while, for, try, match, and function calls

cannot see any pdfs

cannot see any pdfs

Tags

#odersky-programming-in-scala-2ed #scala

Question

Why doesn't it work?


var line = ""
while ((line = readLine()) != "") // This doesn’t work!
  println("Read: "+ line)

Answer

the result of assignment expression is always Unit, so the above check Unit != "" is always true

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

cannot see any pdfs