Is auto-initialization of multi-dimensional hash array possible in Ruby, as it is in PHP?
103995
Hashes of Hashes Idiom in Ruby?
139732
Read and write values in Multidimensional arrays in verilog
94972
Java Array HashCode implementation
129148
How can I memoize a method that may return true, false, or nil in Ruby?
38810
PHP: array_map on object?
10138
How to avoid NoMethodError for missing elements in nested hashes, without repeated nil checks?
47176
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash.new([])
58259
Is it possible to deduce the value of a string when given its hash and multiples hashes of the string + other known strings?
86584
Do parts of a hash carry the properties of the entire hash?
96246
What's quicker and better to determine if an array key exists in PHP?
89891
Hash tables in MATLAB
157665
Initializing an array on arbitrary starting index in c#
83647
In Ruby is it possible to create a local variable explicitly
110947
Unique construct for passing a hash
154659
What's the best way to initialize a dict of dicts in Python?
122890
How to initialize HashSet values by construction?
117673
Can a (C/C++) array initialization reference itself?