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- def inexpensive
- ["a","b","c"]
- end
- def expensive
- sleep(1)
- ["a","b","c"]
- end
- puts "fast"
- inexpensive.each do |item|
- puts item
- end
- puts "slow?"
- expensive.each do |item|
- puts item
- end
- puts "will this run forever?"
- myArr = ["a","b","c"]
- myArr.each do |item|
- myArr.push("x")
- end
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