# robin/chitsheet

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 --- io: |- Basic Math Io> 1+1 ==> 2 Io> 2 sin ==> 0.909297 Io> 2 sqrt ==> 1.414214 Variables Io> a := 1 ==> 1 Io> a ==> 1 Io> b := 2 * 3 ==> 6 Io> a + b ==> 7 Conditions Io> a := 2 Io> if(a == 1) then(writeln("a is one")) else(writeln("a is not one")) a is not one Io> if(a == 1, writeln("a is one"), writeln("a is not one")) a is not one Lists Io> d := List clone append(30, 10, 5, 20) ==> list(30, 10, 5, 20) Io> d size ==> 4 Io> d print ==> list(30, 10, 5, 20) Io> d := d sort ==> list(5, 10, 20, 30) Io> d first ==> 5 Io> d last ==> 30 Io> d at(2) ==> 20 Io> d remove(30) ==> list(5, 10, 20) Io> d atPut(1, 123) ==> list(5, 123, 20) Loops Io> for(i, 1, 10, write(i, " ")) 1 2 3 4 5 6 7 8 9 10 Io> d foreach(i, v, writeln(i, ": ", v)) 0: 5 1: 123 3: 20 Strings Io> a := "foo" ==> "foo" Io> b := "bar" ==> "bar" Io> c := a .. b ==> "foobar" Io> c at(0) ==> 102 Io> c at(0) asCharacter ==> "f" Io> s := "this is a test" ==> "this is a test" Io> words := s split(" ", "\t") print "this", "is", "a", "test" Io> s findSeq("is") ==> 2 Io> s findSeq("test") ==> 10 Io> s slice(10) ==> "test" Io> s slice(2, 10) ==> "is is a "