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How do I take the values from an array inside an array and put them into their own array?


How do I take the values from an array inside an array and put them into their own array?

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How do I take the values from an array inside an array and put them into their own array?
Tag : arrays , By : jehammon
Date : November 29 2020, 09:01 AM

help you fix your problem Output is a cell array where each entry corresponds to one of your format codes. You might do the following:
my_strings = Output{1};
my_data = [Output{2}, Output{3}];

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Using only native PHP function to get array values from a list array inside an array


Tag : php , By : yogan
Date : March 29 2020, 07:55 AM
will help you I have an array below:
$arr = array_map('current', $arr);

Get NumPy Array Indices in Array B for Unique Values in Array A, for Values Present in Both Arrays, Aligned with Array A


Tag : python , By : Stephen Dewar
Date : March 29 2020, 07:55 AM
With these it helps I have two NumPy arrays: , I'm not sure how efficient this is but it works:
import numpy as np
A = np.asarray(['4', '4', '2', '8', '8', '8', '8', '8', '16', '32', '16', '16', '32'])
B = np.asarray(['2', '4', '8', '16', '32'])
idx_of_a_in_b=np.argmax(A[np.newaxis,:]==B[:,np.newaxis],axis=0)
print(idx_of_a_in_b)
[1 1 0 2 2 2 2 2 3 4 3 3 4]

Return unique array values from an array inside an array of objects


Tag : javascript , By : wrb302
Date : March 29 2020, 07:55 AM
it fixes the issue I can't find a similar question and I'm a bit stuck. I have the following JSON array: , You could do it with couple of Array methods. For example:
var result = [
    {
        "Name": "element1",
        "Attributes": ["1", "2"]
    },

    {
        "Name": "element2",
        "Attributes": ["1","3" ]
    },
    {
        "Name": "element3",
        "Attributes": []
    }
]

// map to [ ["1", "2"], ["1", "3"], [] ]
.map(item => item.Attributes)

// flatten to [ "1", "2", "1", "3" ]
.reduce((prev, curr) => prev.concat(curr), [])

// filter unique [ "1", "2", "3" ]
.filter((item, i, arr) => arr.indexOf(item) === i)

console.log(result)

Ruby on rails array formatting - removing//selecting values from inner array inside a hash array


Tag : ruby-on-rails , By : Gipsy.D
Date : March 29 2020, 07:55 AM
hope this fix your issue I have long list of values in the inner_value field from which I want only some values , Your aim is not to select, you have to modify the input:
hash_array.map { |hash| hash['inner_value'] = hash['inner_value'].first }
#=> [
#     {
#       "array_value"=>1,
#       "inner_value"=> {
#          "iwantthis"=>"forFirst"
#        }
#      },
#      {
#        "array_value"=>2,
#        "inner_value"=> {
#          "iwantthis"=>"forSecond"
#        }
#      }
#    ]
hash_array.map do |hash|
  hash['inner_value'] = hash['inner_value'].find { |hash| hash['iwantthis'] }
end # `iwantthis` is the key, that can change
keys = %w(iwantthis Idontwantthis)
hash_array.map do |hash|
  hash['inner_value'] = keys.flat_map do |key|
    hash['inner_value'].select {|hash| hash if hash[key] }
  end
end
#=> [{"array_value"=>1, "inner_value"=>[{"iwantthis"=>"forFirst"}, {"Idontwantthis"=>"some value"}]}, {"array_value"=>2, "inner_value"=>[{"iwantthis"=>"forSecond"}, {"Idontwantthis"=>"some value"}]}]

Filter Array of Array for values inside nested array


Tag : javascript , By : micaleel
Date : March 29 2020, 07:55 AM
Does that help If the [index] is always the second element of the array, you can simply check whether the value at index 1 is the desired index.
var array = [
  [12, 43801309, "21.10.2018 00:00:00", 0.00089, 0.00055, 0.0004],
  [13, 43801308, "22.10.2018 00:00:00", 0.00089, 0.00055, 0.0004],
  [34, 43801307, "23.10.2018 00:00:00", 0.00089, 0.00055, 0.0004],
  [234, 43801308, "24.10.2018 00:00:00", 0.00089, 0.00055, 0.0004]
];

var targetIndex = 43801308;

var filtered = array.filter(val => val[1] === targetIndex);

console.log(filtered);
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