How to put data from loop into an array

Question

I have this array that looks like this.

@a = ["foo","bar"].join(",")

But i would like to retrieve the "foo" and "bar" through a loop from my database instead of creating them manually and insert them into the array. How would i do that? For instance i have data, in which i want all the usernames to be put in an array and be seperated by the ",". How can i put all usernames into the array?

@data = Data.all

@data.each do |d|
   d.username
end

DNNX · Accepted Answer · 2013-03-10 15:15:42Z

1

usernames = Data.all.map(&:username)
joined = usernames.join(',')

answered Mar 10, 2013 at 15:15

DNNX

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1 Comment

Pierre Over a year ago

Your first answer worked, thanks. Data.all.map(&:username).join(',')

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