nested json example w3schools

... The object contains key and value pairs and the Array contains a group of objects enclosed in a square bracket[]. { "roles": [ {"name": "admin", "id": 1`}, {"name": "sales", "id": 2} ] } Two-dimensional arrays are an array of arrays.

W3Schools

w3schools.io › json-sample-examples

Learn JSON sample examples - w3schools

JSON Example contains an array ... { "roles": ["admin", "employee", "user", "visitor"] } Nested JSON Object The object contains a key and value....

Videos

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#9. Create Nested Complex JSON Object & Arrays in Karate Framework ...

w3schools.in › json › objects

JSON Objects - W3Schools

For this, the syntax will be: ... ... and the value can be either string or a numeric value. Let us take an example where a JSON file will store professor's data and their salaries....

W3Schools

w3schools.com › js › js_json_objects.asp

JSON Literals

JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Website JS Syllabus JS Study Plan JS Interview Prep JS Bootcamp JS Certificate JS Reference ... JSON object literals are surrounded by curly braces {}.

W3Schools

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W3Schools online HTML editor

The W3Schools online code editor allows you to edit code and view the result in your browser

W3Schools

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JSON Arrays

In JSON, array values must be of type string, number, object, array, boolean or null. In JavaScript, array values can be all of the above, plus any other valid JavaScript expression, including functions, dates, and undefined. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com

W3Schools

w3schools.io › file › yaml-array-objects

YAML equivalent of an array of objects in JSON - w3schools

This tutorial covers How to write an object, an array of objects, and nested object array in YAML with examples json to yaml mapping array nested objects

Plain English

python.plainenglish.io › data-extraction-parse-a-3-nested-json-object-23cb978b66ad

Data Extraction: Parse a 3-Nested JSON Object and Convert it to a pandas dataframe | by Tejeswini | Python in Plain English

June 10, 2021 - www.w3schools.com · A JSON object is a collection of key and value pairs. For example, { ‘data’ : [ {‘screen_ID’ : ‘63’, in this instance ‘data’ and ‘screen_ID’ are the keys, and ‘63’ is the value. Keys must be strings, and values must be a valid JSON data type (string, number, object, array, boolean or null). Join Medium for free to get updates from this writer. Subscribe · Subscribe · So, what is a Nested-JSON?

W3Resource

w3resource.com › JSON › introduction.php

JSON Tutorial | w3resource

Then '"Price"' label contains an array, which is turn contains two separate objects. Another example of nesting. Also, notice that numbers are not enclosed by quotations. The name behind popularizing the JSON is Douglas Crockford.

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GeeksforGeeks

geeksforgeeks.org › javascript › how-to-access-and-process-nested-objects-arrays-or-json

How to Access and Process Nested Objects, Arrays, or JSON? - GeeksforGeeks

12:18

... const o1 = { o2: { name: "Sourav", contact: { email: "sourav@example.com", phone: "123-456-7890" } } }; // Using dot notation console.log(o1.o2.contact.email); // Using bracket notation console.log(o1["o2"]["contact"]["phone"]);

Published July 23, 2025

Retool

community.retool.com › 💬 queries and resources

Accessing data in nested json - 💬 Queries and Resources - Retool Forum

March 5, 2023 - hey everyone, please excuse my beginners issues but I am having some really hard time accessing items in nested json. At the moment I am trying to simply get the title url (found in source) main_name (found in actors) aliases (also found in actors) from json that looks like this { "id": "123456789", "title": "brad pitt on the rise", "authors": "brian j. robb", "language": "EN", "sources": [{ "id": "123456789", "name": "imdb", "url": "https://www.imdb.com/name/nm00000...

Liquid-technologies

blog.liquid-technologies.com › advanced-data-structures-in-json-part-3-of-4

Advanced Data Structures in JSON: Nested Objects & Arrays

July 4, 2025 - This allows you to create hierarchical structures, grouping related attributes together.2 ... Representing “has-a” relationships: For example, a user object “has an” address object.

W3Schools

w3schools.com › js › js_json.asp

W3Schools.com

JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP JS jQuery · jQuery Selectors jQuery HTML jQuery CSS jQuery DOM JS Graphics · JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3.js JS Examples

Plain English

plainenglish.io › blog › data-extraction-parse-a-3-nested-json-object-23cb978b66ad

Data Extraction: Parse a 3-Nested JSON Object and Convert it to a pandas dataframe

June 6, 2021 - Detailed documentation can be looked ... =…*www.w3schools.com · A JSON object is a collection of key and value pairs. For example, { 'data’ : [ {'screen_ID’ : '63’, in this instance 'data’ and 'screen_ID’ are the keys, and '63’ is the value. Keys must be strings, and values must be a valid JSON data type (string, number, object, array, boolean or null). So, what is a Nested-JS...

Stack Overflow

stackoverflow.com › questions › 10539797 › complex-json-nesting-of-objects-and-arrays

Complex JSON nesting of objects and arrays

Top answer

1 of 5

The first code is an example of Javascript code, which is similar, however not JSON. JSON would not have 1) comments and 2) the var keyword

You don't have any comments in your JSON, but you should remove the var and start like this:

orders: {

The [{}] notation means "object in an array" and is not what you need everywhere. It is not an error, but it's too complicated for some purposes. AssociatedDrug should work well as an object:

"associatedDrug": {
                "name":"asprin",
                "dose":"",
                "strength":"500 mg"
          }

Also, the empty object labs should be filled with something.

Other than that, your code is okay. You can either paste it into javascript, or use the JSON.parse() method, or any other parsing method (please don't use eval)

Update 2 answered:

obj.problems[0].Diabetes[0].medications[0].medicationsClasses[0].className[0].associatedDrug[0].name

returns 'aspirin'. It is however better suited for foreaches everywhere

2 of 5

I successfully solved my problem. Here is my code:

The complex JSON object:

   {
    "medications":[{
            "aceInhibitors":[{
                "name":"lisinopril",
                "strength":"10 mg Tab",
                "dose":"1 tab",
                "route":"PO",
                "sig":"daily",
                "pillCount":"#90",
                "refills":"Refill 3"
            }],
            "antianginal":[{
                "name":"nitroglycerin",
                "strength":"0.4 mg Sublingual Tab",
                "dose":"1 tab",
                "route":"SL",
                "sig":"q15min PRN",
                "pillCount":"#30",
                "refills":"Refill 1"
            }],
            "anticoagulants":[{
                "name":"warfarin sodium",
                "strength":"3 mg Tab",
                "dose":"1 tab",
                "route":"PO",
                "sig":"daily",
                "pillCount":"#90",
                "refills":"Refill 3"
            }],
            "betaBlocker":[{
                "name":"metoprolol tartrate",
                "strength":"25 mg Tab",
                "dose":"1 tab",
                "route":"PO",
                "sig":"daily",
                "pillCount":"#90",
                "refills":"Refill 3"
            }],
            "diuretic":[{
                "name":"furosemide",
                "strength":"40 mg Tab",
                "dose":"1 tab",
                "route":"PO",
                "sig":"daily",
                "pillCount":"#90",
                "refills":"Refill 3"
            }],
            "mineral":[{
                "name":"potassium chloride ER",
                "strength":"10 mEq Tab",
                "dose":"1 tab",
                "route":"PO",
                "sig":"daily",
                "pillCount":"#90",
                "refills":"Refill 3"
            }]
        }
    ],
    "labs":[{
        "name":"Arterial Blood Gas",
        "time":"Today",
        "location":"Main Hospital Lab"      
        },
        {
        "name":"BMP",
        "time":"Today",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"BNP",
        "time":"3 Weeks",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"BUN",
        "time":"1 Year",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"Cardiac Enzymes",
        "time":"Today",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"CBC",
        "time":"1 Year",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"Creatinine",
        "time":"1 Year",
        "location":"Main Hospital Lab"  
        },
        {
        "name":"Electrolyte Panel",
        "time":"1 Year",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"Glucose",
        "time":"1 Year",
        "location":"Main Hospital Lab"  
        },
        {
        "name":"PT/INR",
        "time":"3 Weeks",
        "location":"Primary Care Clinic"    
        },
        {
        "name":"PTT",
        "time":"3 Weeks",
        "location":"Coumadin Clinic"    
        },
        {
        "name":"TSH",
        "time":"1 Year",
        "location":"Primary Care Clinic"    
        }
    ],
    "imaging":[{
        "name":"Chest X-Ray",
        "time":"Today",
        "location":"Main Hospital Radiology"    
        },
        {
        "name":"Chest X-Ray",
        "time":"Today",
        "location":"Main Hospital Radiology"    
        },
        {
        "name":"Chest X-Ray",
        "time":"Today",
        "location":"Main Hospital Radiology"    
        }
    ]
}

The jQuery code to grab the data and display it on my webpage:

$(document).ready(function() {
var items = [];

$.getJSON('labOrders.json', function(json) {
  $.each(json.medications, function(index, orders) {
    $.each(this, function() {
        $.each(this, function() {
            items.push('<div class="row">'+this.name+"\t"+this.strength+"\t"+this.dose+"\t"+this.route+"\t"+this.sig+"\t"+this.pillCount+"\t"+this.refills+'</div>'+"\n");
        });
    });
  });

  $('<div>', {
    "class":'loaded',
    html:items.join('')
  }).appendTo("body");

});

});

DEV Community

dev.to › iamcymentho › demystifying-nested-data-a-guide-to-accessing-and-processing-objects-arrays-and-json-in-javascript-34im

Demystifying Nested Data: A Guide to Accessing and Processing Objects, Arrays, and JSON in JavaScript - DEV Community

September 15, 2023 - In JavaScript, you can parse JSONdata from a string into a JavaScript object using the JSON.parse() method: ... This section provides real-world scenarios and code examples demonstrating how to work with nested data.

QA With Experts

qawithexperts.com › article › javascript › nested-and-complex-json-examples › 446

Nested and Complex JSON examples - QA With Experts

June 26, 2024 - var objct = JSON.parse('{"data": [{ "MainId": 1111,"firstName": "Sherlock","lastName": "Homes","categories": [ {"CategoryID": 1,"CategoryName": "Example"}]},{"MainId": 122,"firstName": "James", "lastName": "Watson", "categories": [{ "CategoryID": 2,"CategoryName": "Example2"}]}], "messages": [], "success": true }'); console.log(objct.data[1].firstName); //output //James · That's it, these are some of the complex and nested JSON example, which can be helpful for front-end or back-end developer.

Phrase

support.phrase.com › hc › en-us › articles › 6111330881692--JSON-Nested-Strings

.JSON - Nested (Strings) – Phrase

AI chatbots can be very effective at generating a list of keys from a .JSON file. { "boolean_key": "--- true\n", "empty_string_translation": "", "key_with_description": "Check it out! This key has a description! (At least in some formats)", "key_with_line-break": "This translations contains\na line-break.", "nested": { "deeply": { "key": "Wow, this key is nested even deeper."

Stack Overflow

stackoverflow.com › questions › 56378707 › display-nested-json-data-using-javascript

html - Display nested JSON data using Javascript - Stack Overflow