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Using Ruby hashes as keyword arguments 1.0

  Date Added: May 10, 2013  |  Visits: 392

Using Ruby hashes as keyword arguments

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However, as you have more and more keyword options, setting defaults in this way gets rather tedious. Fortunately, Ruby's Hash#merge comes to our rescue (almost) - it allows you to merge the contents of one hash with another. The only problem - any duplicate keys in the hash you are merging will overwrite your original hash values - when it comes to setting default values, we want this to work the other way around; we only want values in the defaults hash to be merged if they do not exist in the original hash. Again, Ruby comes to our rescue - Hash#merge takes a block as an argument and will pass any duplicate values that crop up into the block - we can use this block to decide which value to keep.

Requirements: No special requirements
Platforms: Windows, *nix, Linux, Ruby ,
Keyword: Hashes Keyword Keyword Arguments Ruby Ruby Hashes Ruby Snippets
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License: Freeware
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