Iterators: Difference between revisions
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Where iterators really shine; when you are collating the values from several infinite generators. |
Where iterators really shine; when you are collating the values from several infinite generators. |
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(1 2 3 4 5 8 9 16 25 27 32 64 81 125 128 243 256 512 625 729 1024 2048 2187 3125 4096)</pre> |
(1 2 3 4 5 8 9 16 25 27 32 64 81 125 128 243 256 512 625 729 1024 2048 2187 3125 4096)</pre> |
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=={{header|Ring}}== |
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<lang ring> |
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list = [["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"], |
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["Red","Orange","Yellow","Green","Blue","Purple"]] |
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ind = [1,4,5] |
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revInd = reverse(ind) |
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see "working..." +nl |
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see "All elements:" + nl |
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for n = 1 to len(list) |
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for m = 1 to len(list[n]) |
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see list[n][m] + " " |
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next |
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see nl |
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next |
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see nl + "First, fourth, and fifth elements:" + nl |
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for n = 1 to len(list) |
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for m = 1 to len(ind) |
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see list[n][m] + " " |
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next |
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see nl |
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next |
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see nl +"Reverse first, fourth, and fifth elements:" + nl |
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for n = 1 to len(list) |
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for m = 1 to len(revInd) |
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see list[n][m] + " " |
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next |
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see nl |
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next |
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see "done..." +nl |
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</lang> |
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{{out}} |
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<pre> |
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All elements: |
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Sunday Monday Tuesday Wednesday Thursday Friday Saturday |
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Red Orange Yellow Green Blue Purple |
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First, fourth, and fifth elements: |
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Sunday Monday Tuesday |
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Red Orange Yellow |
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Reverse first, fourth, and fifth elements: |
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Sunday Monday Tuesday |
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Red Orange Yellow |
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</pre> |
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=={{header|Wren}}== |
=={{header|Wren}}== |
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