ok> .? Hello World?Easy to learn and to program ? I would say Scheme. Smalltalk, as mentioned by others, does have a too large class hierarchy to start with.
\ .? is a function (functions are called words in Forth) -> Hello World Define new Words (functions) starting with : and ending with ; Colon : and ; are words in Forth, not syntax. forth has no syntax. ok> : say-hello .? Hello World? ; ok> say-hello -> Hello World ?if? is no syntax either. ?if? is a macro which compiles a conditional jump to the ?else? mark, and else is a macro which compiles a jump to the ?then? mark. so even to extend the compiler is really simple and it could be done in the REPL (read eval print loop). you don?t see the arguments in code because arguments are given implicit on data stack. (1 ? push 1 on data stack. if ? take 1 from data stack) ok> : yes-or-no if .? true? else .? false? then ; ok> 1 yes-or-no -> true ok> 0 yes-or-no -> false