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In Ruby 1.8.6, I have an array of, say, 100,000 user ids, each of which is an int. I want to perform a block of code on these user ids but I want to do it in chunks. For example, I want to process them 100 at a time. How can I easily achieve this as simply as possible?
I could do something like the following, but probably there's an easier way:
a = Array.new userids.each { |userid| a << userid if a.length == 100 # Process chunk a = Array.new end } unless a.empty? # Process chunk end 
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Use each_slice:
require 'enumerator' # only needed in ruby 1.8.6 and before userids.each_slice(100) do |a| # do something with a end Rails has in_groups_of, which under the hood uses each_slice.
userids.in_groups_of(100){|group| //process group } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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