Associative array/Iteration: Difference between revisions
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m (added whitespace before the TOC (table of contents).) |
(→{{header|Ruby}}: renamed myDict to my_dict) |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |
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<lang ruby> |
<lang ruby>my_dict = { "hello" => 13, |
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"world" => 31, |
"world" => 31, |
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"!" => 71 } |
"!" => 71 } |
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# iterating over key-value pairs: |
# iterating over key-value pairs: |
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my_dict.each {|key, value| puts "key = #{key}, value = #{value}"} |
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# or |
# or |
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my_dict.each_pair {|key, value| puts "key = #{key}, value = #{value}"} |
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# iterating over keys: |
# iterating over keys: |
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my_dict.each_key {|key| puts "key = #{key}"} |
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# iterating over values: |
# iterating over values: |
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my_dict.each_value {|value| puts "value =#{value}"}</lang> |
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another way: |
another way: |
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<lang ruby>for key, value in |
<lang ruby>for key, value in my_dict |
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puts "key = #{key}, value = #{value}" |
puts "key = #{key}, value = #{value}" |
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end |
end |
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for key in |
for key in my_dict.keys |
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puts "key = #{key}" |
puts "key = #{key}" |
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end |
end |
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for value in |
for value in my_dict.values |
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puts "value = #{value}" |
puts "value = #{value}" |
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end</lang> |
end</lang> |
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