Convert array to string with quotes

Question

How do I convert an array like: ``` [["hello"], ["world"]] ``` To: ``` "hello", "world" ``` I tried `array.join(',')` But this would return: ``` "hello world" ``` What I want is a string with qoutes: `""hello", "world""`. For completeness: I am trying to build this query from the array. ``` DELETE FROM table WHERE column IN ("hello", "world"); ```

Accepted Answer

Try:

```
array.map{|s| "\"#{s}\""}.join(', ')
```

Update:

With structure `[['a'],['b']` do:

```
array.map{|s| "\"#{s.first}\""}.join(', ')
```

Convert array to string with quotes

Solution

Problem