Joined July 2012
·
Posted to
Using .reject with .map in Ruby
over 1 year
ago
@hauleth This is just an abstract example. Ideally if you just only wanted to remove items from a collection, you could just use .reject and it will return a new array. Of course you would only use map if you wanted transform the collection in some way.
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As you can see, inequality issues can arise. This boxing issue occurs for any primitive.