You could use Regexp#random_example in conjunction with the taken_names, as per your first solution in this blog post.
Or -- with the potential performance issue of storing a large array in ruby memory (as with all your other examples that use to_a!) -- you could also use Regexp#examples to end up with very similar solutions. (See the documentation.) For example:
.
...Note that this would be a bad idea if the pattern got longer, so the number of possible results was much larger. All of your examples that use to_a, just like my Regexp#examples code above, would soon freeze the system as the array length grows exponentially.
Using Regexp#random_example - similar to your original implementation - would scale fine though.
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You could use
Regexp#random_examplein conjunction with thetaken_names, as per your first solution in this blog post.Or -- with the potential performance issue of storing a large array in ruby memory (as with all your other examples that use
to_a!) -- you could also useRegexp#examplesto end up with very similar solutions. (See the documentation.) For example:.
...Note that this would be a bad idea if the pattern got longer, so the number of possible results was much larger. All of your examples that use
to_a, just like myRegexp#examplescode above, would soon freeze the system as the array length grows exponentially.Using
Regexp#random_example- similar to your original implementation - would scale fine though.