Convert Multidimensional Array Into Individual Strings in Ruby

Question

I want to take a multidimensional array:

m_array = [["S39.91", "S39.91"], ["B99.9"]]

And convert it to individual strings based on its grouping:

String One = "S39.91, S39.91"
String Two = "B99.9"

user419017 · Accepted Answer · 2016-12-30 15:25:50Z

5

What about:

m_array.map { |strings| strings.join(', ') }

That will give you an array:

["S39.91, S39.91", "B99.9"]

Which you can then use to assign to variables:

string_1, string_2 = ["S39.91, S39.91", "B99.9"]

answered Dec 30, 2016 at 15:25

user419017

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8 Comments

bradbajuz Over a year ago

Great. Exactly what I was looking for.

Sagar Pandya Over a year ago

Nice, but consider consolidating your code into one line, i.e. string1, string2 = m_array.map { |arr| arr.join(', ') }

Eric Duminil Over a year ago

@sagarpandya82 : No. First line works with any length, second line is for the special case of an array with two elements.

Sagar Pandya Over a year ago

@EricDuminil I don't understand what you're are saying. The first line creates a new array, the second line assigns the variables. My suggestion is to do both in one line.

Eric Duminil Over a year ago

I'm just saying that we don't know if the array only has 2 elements, or more.

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