This question already has an answer here:
In Java, something like i++ would increment i by 1.
How can I do in Ruby? Surely there has to be a better way than i = i + 1?
marked as duplicate by the Tin Man, Neil Slater, iCodez, Johan, Cole Johnson Oct 1 '13 at 2:49
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1This doesn't show a lot of effort. Google would have turned up numerous hits for "ruby increment operator" including "No increment operator (++) in Ruby?", plus the afore-mentioned question. – the Tin Man Sep 30 '13 at 18:30
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2I think this is a different question. He's asking how you do it, not why there is no support for it. – Tony Feb 11 '14 at 18:56
From the documentation,
Ruby has no pre/post increment/decrement operator. For instance, x++ or x-- will fail to parse
So, you can do
i += 1which is equivalent of i = i + 1
