Type detection: Difference between revisions
added Factor
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=={{header|Factor}}==
Using method dispatch:
<lang>USING: arrays formatting io kernel math prettyprint sequences
strings ;
IN: rosetta-code.type-detection
GENERIC: myprint ( object -- )
M: object myprint drop "I don't know how to print this." print ;
M: string myprint "I'm a string: \"%s\"\n" printf ;
M: fixnum myprint "I'm a fixnum: " write . ;
M: array myprint "I'm an array: { " write
[ pprint bl ] each "}" print ;
"Hello world." myprint
{ 1 2 3 4 5 } myprint
123 myprint
3.1415 myprint</lang>
{{out}}
<pre>
I'm a string: "Hello world."
I'm an array: { 1 2 3 4 5 }
I'm a fixnum: 123
I don't know how to print this.
</pre>
== {{header|J}} ==
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