Elegantly handling blank values in a nested hash
10138
How to avoid NoMethodError for missing elements in nested hashes, without repeated nil checks?
73721
How to to calculate the hash of an unordered set
16236
Is it possible to enforce unique values in a column, excluding nulls?
156204
validate email format only if not blank Rails 3
110947
Unique construct for passing a hash
89099
Accessing a Ruby hash with a variable as the key
44916
Remove blank attributes from an Object in Javascript
63824
Getting hash with symbol as keys for mongo in rails
101964
Ruby recursive map of a hash of objects
101561
Passing an empty array as default value of an optional parameter
47176
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash.new([])
17641
How do I sort an array of hashes by a value in the hash?
141537
Return a blank when cell reference is blank
26950
Is there a string that's hash is equal to itself?
136070
How do I compare two hashes in Perl without using Data::Compare?
139802
Strip waste braces in nested list
16960
When can I use a temporary IFS for field splitting?