The map method takes an enumerable object and a block, and runs the block for each element, outputting each returned value from the block (the original object is unchanged unless you use map!): [1, 2, 3].map { |n| n * n } #=> [1, 4, 9] Array ...
Snippet
What does the "map" method do in Ruby? How is it dif...
Admin
Apr 16, 2016
12 comments
945
Big data is a term that describes the large volume of data – both structured and unstructured – that inundates a business on a day-to-day basis. But it’s not the amount of data that’s important. It’s what organizations do with the data that matter...
Article
What exactly is Big Data?