• View
• Edit
• History
• Print

the REPL

#############################

Scala has an interactive shell. It's like the Python shell, but technically it's not an interpreter. Whenever you make something evaluate, it creates a temporary file, compiles it, and executes it. It happens behind the curtain, but it's good to know. So instead of "Scala interpreter", call it "the REPL" :)

• The REPL has TAB completion! Type in "hello".to<TAB> and it will print the available options (toCharArray toLowerCase toString toUpperCase).
• You can use it as a calculator. The results are assigned to variables that you can use for further calculations: