How to Split Ruby Array of Hashes

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I want to split an array of hashes.

.split is not working on it.

I want to split it in two while maintaining the order so may be .partion, .select, group_by will not work for me.

Something from this

allay = [
  {name: "Iron Man", power: "Tech"},
  {name: "Spiderman", power: "Iron Man as Uncle"},
  {name: "Thor", power: "God"},
  {name: "Hawk Eye", power: "None"},
  {name: "Black Widow", power: "love her"}
]

to this as an output

=> [
  [
    {name: "Iron Man", power: "Tech"},
    {name: "Spiderman", power: "Iron Man as an Uncle"},
    {name: "Thor", power: "God"}
  ],
  [
    {name: "Hawk Eye", power: "None"},
    {name: "Black Widow", power: "love her <3"}
  ]
]

It can be achieved by using drop and take:

def split_by_index(array, n)
  [array.take(n), array.drop(n)]
end

Split an array of hashes in two based on the value of a key, ruby arrays. How can split this array of hashes in two based on the value of the ate key? array = [ { name: "Gad", ate: true }, { name: "Lad", ate:  ruby What you are doing will access the fourth character of String s. Split the string to an array and then access the fourth element as follows. puts s.split Note: Calling split without parameters separates the string by whitespace.


You can use Enumerable#each_slice to get the behavior you desire:

left, right = allay
  .each_slice(allay.length.succ / 2)
  .to_a

There are other ways to do it, of course, but they're not quite as nice. Here's another:

pivot = allay.length.succ / 2
left, right = allay
  .partition
  .with_index { |_, i| i < pivot }

And another:

left, right = [], allay.dup
left << right.shift until left.length >= right.length

Benchmarks!

      each_slice    785.207k (± 5.6%) i/s -      3.920M in   5.006885s
      with_index    694.555k (± 6.6%) i/s -      3.474M in   5.023968s
      push_shift      1.674M (± 6.2%) i/s -      8.343M in   5.004380s
       take_drop      3.468M (± 6.8%) i/s -     17.303M in   5.013369s

Split a hash into multiple equal-sized hashes · GitHub, Extend hashes by adding one method that allows you to split a hash into an array of equal-sized hashes. # Per the usage example, return values are not ordered unless you're using Ruby 1.9. # usage: # a = {1 => 'a', 2 => 'b', 3 => 'c', 4 => 'd',  Sorting an array in Ruby is easy! You don't need to write any fancy algorithms to get the result you want. What's needed, then? Understanding Ruby's built-in sorting methods. These: sort sort_by sort! How do these methods work &amp; why are they different? That's


You can use [] notation with ranges.

arr = [*1..6]
s = arr.size
[arr[0..s/2-1], arr[s/2..-1]]
 #=> [[1, 2, 3], [4, 5, 6]]

arr = [*1..7]
s = arr.size
[arr[0..s/2-1], arr[s/2..-1]]
 #=> [[1, 2, 3], [4, 5, 6, 7]]

Arrays and Strings | Arrays, Ranges, and Hashes in Ruby, Turning a string into an array requires the scan or split method. I'll demonstrate split here, and you'll learn more about scan in Chapter 10,  Removes a key-value pair from hash, returning it as a two-element array. 33: hash.size. Returns the size or length of hash as an integer. 34: hash.sort. Converts hash to a two-dimensional array containing arrays of key-value pairs, then sorts it as an array. 35: hash.store(key, value) Stores a key-value pair in hash. 36: hash.to_a


How To Use Array Methods in Ruby, But when arrays contain more complex objects, you'll have to do a little more work. Here's an array of hashes, with each hash representing a shark: sharks = [ {​  Hash Literals. Just like arrays, hashes can be created with hash literals. Hash literals use the curly braces instead of square brackets and the key value pairs are joined by =>. For example, a hash with a single key/value pair of Bob/84 would look like this: { "Bob" => 84 }.


Level Up Your Ruby Skillz: Working With Hashes, Last week I tackled Ruby arrays and shared some of the methods I find Now we have two separate variables, one representing the key and  Map is a Ruby method that you can use with Arrays, Hashes & Ranges. The main use for map is to TRANSFORM data. For example: Given an array of strings, you could go over every string & make every character UPPERCASE. Or if you have a list of User objects….


How to Sort Arrays & Hashes in Ruby (Examples Included), The Ruby sort method helps you order your data (arrays & hashes) in whatever way you like, but the sort_by method is even better. Everything explained here. Nested Arrays, Hashes & Loops in Ruby. Although the tweet itself is a string, we can . split the tweet and create an array containing each word in the tweet