ruby: how to convert hash into array
22,801
Solution 1
try this:
{0=>0.07394653730860076, 1=>0.0739598476853163, 2=>0.07398647083461522}.to_a
#=> [[0, 0.07394653730860076], [1, 0.0739598476853163], [2, 0.07398647083461522]]
Solution 2
Definitely use the Hash#to_a method, which will produce exactly what you are looking for.
{0=>0.07394653730860076, 1=>0.0739598476853163, 2=>0.07398647083461522}.to_a
=> [[0, 0.07394653730860076], [1, 0.0739598476853163], [2, 0.07398647083461522]]
Hash#values will give you only the values of each element in the hash, while Hash#keys will give you just the keys. Fortunately, the default behavior of to_a is what you are looking for.
Author by
user2376068
Updated on May 15, 2020Comments
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user2376068 almost 4 years
I have a hash that contains numbers as such:
{0=>0.07394653730860076, 1=>0.0739598476853163, 2=>0.07398647083461522}
it needs to be converted into an array like:
[[0, 0.07394653730860076], [1, 0.0739598476853163], [2, 0.07398647083461522]]
i tried my hash.values which gets me:
[0.07398921877505593, 0.07400253683443543, 0.07402917535044515]
I have tried multiple ways but i just started learning ruby.