fcarlone

var flatten = function(array) {
  var results = [];
  
  for(var i = 0; i < array.length; i++) {
    if(Array.isArray(array[i])) {
      results = results.concat(flatten(array[i]));
    } else {
      results.push(array[i]);
    }  
  }

fcarlone

[4] pry(#<Post>):1> nesting
Nesting status:
--
0. main (Pry top level)
1. #<Post>
[5] pry(#<Post>):1> self.to_s
=> "#<Post:0x007f8bc222b398>"
[6] pry(#<Post>):1> self.title = 'some new title'
=> "some new title"
[7] pry(#<Post>):1> self.body = 'some new body'

fcarlone

// $ psql -f Downloads/library-data.sql library postgres
// $ psql library postgres
// library-# SELECT * FROM books;
RESULT:

  id  |                  title                   |       author
------+------------------------------------------+---------------------
 1259 | Eloquent Ruby                            | Russell A. Olson
 1593 | JavaScript: The Good Parts               | Douglas Crockford
 8982 | Designing Object-Oriented Software       | Rebecca Wirfs-Brock

fcarlone

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