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Ruby & Javascript have syntax defined in their parsers for control structures. for eg: # Ruby if someThing() doThis() else doThisInstead() en
by draegtun 15y ago
Ruby & Javascript have syntax defined in their parsers for control structures. for eg:
# Ruby
if someThing()
doThis()
else
doThisInstead()
end
# Javascript/Perl/etc
if (someThing()) { doThis() }
else { doThisInstead() }
Whereas Io & Smalltalk requires no new syntax and uses objects & messages:
# Io
if(someThing, doThis, doThisInstead)
# Io like Ruby,etc
if(something) then(doThis) else(doThisInstead)
# Io like Smalltalk
someThing ifTrue(doThis) ifFalse(doThisInstead)
# Smaltalk
someThing ifTrue: [doThis] ifFalse: [doThisInstead].
- eru 15y agoAs an aside, Haskell wouldn't need syntax for something like `if', but has it as a convenience. There's no syntax for looping, you can do that with higher-order functions.