Queue/Usage: Difference between revisions
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(→{{header|Wren}}: Now uses Queue class from new Wren-queue module.) |
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print my_queue.get() # bar |
print my_queue.get() # bar |
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print my_queue.get() # baz</lang> |
print my_queue.get() # baz</lang> |
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=={{header|Quackery}}== |
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<lang Quackery>[ [] ] is queue ( --> q ) |
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[ nested join ] is push ( q x --> q ) |
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[ behead ] is pop ( q --> q x ) |
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[ [] = ] is empty? ( q --> b )</lang> |
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'''Demonstrating operations in Quackery shell:''' |
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<pre>/O> queue |
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... 1 push |
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... $ "two" push |
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... ' [ 1 2 + echo say "rd" ] push |
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... say "The queue is " dup empty? not if [ say "not " ] say "empty." cr |
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... pop echo cr |
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... pop echo$ cr |
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... pop do cr |
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... say "The queue is " empty? not if [ say "not " ] say "empty." cr |
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... |
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The queue is not empty. |
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1 |
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two |
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3rd |
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The queue is empty. |
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Stack empty.</pre> |
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=={{header|Racket}}== |
=={{header|Racket}}== |
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