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

Question

I can\'t find a similar question and I\'m a bit stuck. I have the following JSON array:

[
    {
        \"Name\": \"element1\",
        \"Attributes\": [\"1\         


        

Answer 1

If lodash is an option, you can easily get what you want:

> _.chain(foo).map('Attributes').flatten().uniq().value()
["1", "2", "3"]