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Tags

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

Question

You can't reassign [vars or vals]

Answer

vals

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

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You can't reassign vals

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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