Associative array/Iteration: Difference between revisions
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(Added the CONTAINSKEY operator needed by the Lychrel Numbers task.) |
(Added Io entry) |
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Keys: C E B D A |
Keys: C E B D A |
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Values: c e b d a</pre> |
Values: c e b d a</pre> |
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=={{header|Io}}== |
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<lang Io>myDict := Map with( |
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"hello", 13, |
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"world", 31, |
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"!" , 71 |
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) |
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// iterating over key-value pairs: |
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myDict foreach( key, value, |
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writeln("key = ", key, ", value = ", value) |
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) |
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// iterating over keys: |
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myDict keys foreach( key, |
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writeln("key = ", key) |
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) |
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// iterating over values: |
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myDict foreach( value, |
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writeln("value = ", value) |
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) |
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// or alternatively: |
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myDict values foreach( value, |
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writeln("value = ", value) |
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)</lang> |
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=={{header|J}}== |
=={{header|J}}== |
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