methods-for-comparing-strings__strings-and-how-to-use-them__learn-scala-from-scratch ,  learn-scala-from-scratch__educative

bitwise-operators__operating-with-operators__learn-scala-from-scratch ,  learn-scala-from-scratch__educative

mutable-variables__variables-and-types__learn-scala-from-scratch ,  learn-scala-from-scratch__educative

a-scalable-language__getting-to-know-scala__learn-scala-from-scratch ,  learn-scala-from-scratch__educative

chapter-quiz__strings-and-how-to-use-them__learn-scala-from-scratch ,  learn-scala-from-scratch__educative

challenge-temperature-conversion__operating-with-operators__learn-scala-from-scratch ,  learn-scala-from-scratch__educative