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just wondering the difference between the presence of the last comma in the array, if there is any at all
>> [1,2,3]
=> [1, 2, 3]
>> [1,2,3,]
=> [1, 2, 3]
The second array still works, no exception raised
Thanks
There’s no difference. In Ruby, you’re free to add a trailing comma to an array. It makes syntax like this:
A bit nicer, in some cases (e.g., if you want to add an element, you simply add a
4,line and don’t have to worry about checking for a comma on the last line).