It's often useful in games, simulation and unit testing to generate random numbers. Ruby provides easy access to a pseudo- random number. How do I generate a random number between 0 and n? What is wrong with rand(range)? From Ruby Random Numbers: If you needed a. This Ruby example page generates random numbers with the rand method. It uses srand to seed a random stream of numbers. This code will produce strings of the following form: And recall that if you want a non-inclusive range, you can use 3 periods, like rand Returns a random binary string containing size bytes. This should be standard fare on ALL programming languages, and if they don't, then they suck and people should be vociferous about it. Then we take advantage tisch casino duisburg calling Array. Although if you're typing the number out, it's certainly better to use Assuming that method is going to be called more than once, it would make sense to define it once as a constant or possibly class variable outside of the routine, rather than generating it each call, so more like:.