Pick random element: Difference between revisions
Content deleted Content added
added Julia example |
Added COBOL example. Corrected PL/I and R lang tags and Common Lisp header. |
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<lang Clojure>(nth coll (rand-int (count coll)))</lang> |
<lang Clojure>(nth coll (rand-int (count coll)))</lang> |
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=={{header|COBOL}}== |
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{{works with|GNU Cobol}} |
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<lang cobol> >>SOURCE FREE |
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IDENTIFICATION DIVISION. |
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PROGRAM-ID. random-element. |
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DATA DIVISION. |
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WORKING-STORAGE SECTION. |
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01 nums-area VALUE "123456789". |
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03 nums PIC 9 OCCURS 9 TIMES. |
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01 random-idx PIC 9 COMP. |
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PROCEDURE DIVISION. |
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COMPUTE random-idx = FUNCTION RANDOM(FUNCTION CURRENT-DATE (9:7)) * 9 + 1 |
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DISPLAY nums (random-idx) |
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. |
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END PROGRAM random-element.</lang> |
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=={{header|CoffeeScript}}== |
=={{header|CoffeeScript}}== |
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console.log array[Math.floor(Math.random() * array.length)]</lang> |
console.log array[Math.floor(Math.random() * array.length)]</lang> |
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=={{header| |
=={{header|Common Lisp}}== |
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<lang lisp>(defvar *list* '(one two three four five)) |
<lang lisp>(defvar *list* '(one two three four five)) |
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=={{header|PL/I}}== |
=={{header|PL/I}}== |
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<lang |
<lang pli> declare t(0:9) character (1) static initial |
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('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'); |
('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'); |
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put ( t(10*random()) );</lang> |
put ( t(10*random()) );</lang> |
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=={{header|R}}== |
=={{header|R}}== |
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<lang |
<lang rsplus># a vector (letters are builtin) |
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letters |
letters |
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# [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s" |
# [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s" |
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