Category:Smalltalk: Difference between revisions

<lang smalltalk>expr1 . expr2 "statements within a method or block are separated by a fullstop."

foo := bar "assignment; let foo refer to the object to which bar refers to (at that particular point in time)"

^ a + 1 "return; the value of the 'a+1' message send is returned as the value of the current method invocation."

'hello' print. 'world' print "statements are separated by a period; just like in english"

|a b c| "local variables; introduces 'a', 'b' and 'c' in the current scope (let-like local bindings)"

r msg1; msg2 "so called cascade; first send msg1 to r,"so ignoringcalled the return value, then send msg2.cascade;

The value of the expression is result fromfirst lastsend msg1 to r, ignoring the return value, message.

Syntactic sugar for (t := r) msg1. tthen send msg2.

but an expression, not a statement (and withThe value of the expression is anresult anonymousfrom variablelast 't')"</lang>message.