2020-04-17 12:37:11 +00:00
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# Playing with arrays
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## Check if all array elements are equals
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2019-12-11 16:23:15 +00:00
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```ruby
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arr = [0, 0, 0, 0, 0, 0, 0]
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puts true if arr.uniq.length == 1
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```
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2020-04-17 12:37:11 +00:00
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## Array includes a sub array
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```ruby
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(subarray & array) == array
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```
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2023-07-16 13:11:53 +00:00
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## Compute values occurences
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```ruby
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[1, 1, 2, 3, 4, 5, 5, 5, 5].tally
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=> {1=>2, 2=>1, 3=>1, 4=>1, 5=>4}
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```
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