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
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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) Io> list(30, 10, 5, 20) select(>10) ==> list(30, 20) Io> list(30, 10, 5, 20) detect(>10) ==> 30 Io> list(30, 10, 5, 20) map(*2) ==> list(60, 20, 10, 40) Io> list(30, 10, 5, 20) map(v, v*2) ==> list(60, 20, 10, 40) | |
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
2: 20
Io> list("abc", "def", "ghi") foreach(println)
abc
def
ghi
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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 exSlice(10)
==> "test"
Io> s exSlice(2, 10)
==> "is is a "
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More |
Quag's Getting Started Tutorial | |