Ruby reorder keys in hash

# First thing to note that #sort/#sort_by will return a new array. Therefore, if we want to return the sorted hash in hash format, we need to call #to_h after #sort.

hash = { a:1, bb:2, ccc:4, dddd:3, eeeee:2}

# sort on key in decending order
puts hash.sort_by {|k, v| -k.length }.to_h
> {:eeeee=>2, :dddd=>3, :ccc=>4, :bb=>2, :a=>1}

# you could do any thing to determine the sort order of the key this way


# a normal sort would work like this (in Ruby 2.1 or higher):
hash.sort.to_h

Similar codes

0 vote384 views1 answer
How to match email in regex in ruby
Ruby
32 votes442 views2 answers
Heroku logs
Ruby
0 vote375 views1 answer
Comparator.constructors[0].newInstance([domainClass] in grails 3
Ruby
0 vote347 views1 answer
Ruby unshift method
Ruby
0 vote352 views1 answer
How to access function defined in model rails
Ruby
0 vote338 views1 answer
Start rails server on different port
Ruby
1 vote347 views1 answer
Rails connect to remote database
Ruby
0 vote339 views1 answer
Ruby exponent
Ruby
1 vote345 views1 answer
Ruby get substring between two characters
Ruby
0 vote380 views1 answer
Hoow to match a complete word in ruby?
Ruby