Extracting a data from json array by certain key in java script

Question

I have a json array which im getting my react data from it, the json is like this:

 {
         "Folders": [
           {
             "name": "parent 2",
             "children": [        //this is children_1
                {
                  "name": "parent 2",
                  "id": "parent 2",
                  "children": []     //this is children_2
                 }
               ],
               "id": 1
            }
          ]
        }

lets say i have the key value of name inside children(children_1) and i want to get the rest of the data inside that children using the name that i have, is there a way to do that ?

Welcome to SO. You might find reading the site help section useful when it comes to asking a good question, and this question checklist. Code that you have worked on to solve the problem should include a minimal reproducible example, and be included in your question. — Andy
– Andy, Commented Dec 27, 2021 at 4:37
I tried to edit it so its fully understandable, so where is the problem? — amir
– amir, Commented Dec 28, 2021 at 5:13

mrdinklage · Accepted Answer · 2021-12-27 05:15:22Z

1

Look at jsonpath

so it will be

var json = require('jsonpath');
var names = jp.query(json, '$.Folders[*].children[*].children');

edited Dec 27, 2021 at 5:15

answered Dec 27, 2021 at 4:39

mrdinklage

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4 Comments

amir Over a year ago

cant really get it to work

mrdinklage Over a year ago

what is your data you are referring to ? Did I understand correct that you need get all from deepest children list ?

amir Over a year ago

i have the value "name" inside (children_1), and i want to get the rest of the values inside (children_1), using that name.(something like finding the name with its value and then getting the parent).

mrdinklage Over a year ago

something like this jp.query(json, '$.Folders[*].children[?(@.name === "parent 2")].children') ? please read npm documentation

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