REPL stands for 'Read Evaluate Print Loop.' The REPL can be used to write and execute code one line at a time and is an alternative to writing code to a file and then compiling or interpreting the entire file before execution.
To start the SMLNJ REPL from a command prompt:
smluser> sml
Standar...
All SML expressions return a value. The REPL stores the return value of the last evaluated expression. it provides the value of the last evaluated expression within the REPL.
smluser> sml
Standard ML of New Jersey v110.78 [built: Thu Jul 23 11:21:58 2015]
- 3+4;
val it = 7 : int
- it;
val i...
