How to access a value within a JSON Object

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I have the following JSON object notation:

[{"getCname('mail.fred.com.au')":[{"cname":"www.fred.com.au"}]}]

and am unsure how to only access the "cname" value alone in JavaScript, i.e. I just require:

"www.fred.com.au"

I have tried res[0].cname but this didn't seem to work.

If you have

let object = [{"getCname('mail.fred.com.au')":[{"cname":"www.fred.com.au"}]}];

then you can get that URL value via

let url = object[0]["getCname('mail.fred.com.au')"][0].cname;

The outer object is an array, and the value of the property with the long strange name is also an array, hence the [0] in two places.

How to access JSON Object name/value?, To access the JSON object in JavaScript, parse it with JSON.parse() , and access it via “.” or “[]”. JavaScript. <script> var data = '{"name":  How to access nested json objects in JavaScript? Accessing nested json objects is just like accessing nested arrays. Nested objects are the objects that are inside an another object. In the following example 'vehicles' is a object which is inside a main object called 'person'. Using dot notation the nested objects' property (car) is accessed.

This is a bit cludgy but if you don't know the 'getCname' key you can do:

let res = [{"getCname('mail.fred.com.au')":[{"cname":"www.fred.com.au"}]}];
let key = Object.keys(res[0])[0];

let cname = res[0][key][0].cname;

How to access JSON object in JavaScript, JSON wouldn't be very useful if you always as defined arbitrarily in the jQuery AJAX function) is how you access the values you want from the JSON object. A JsonNode is Jackson's tree model for JSON and it can read JSON into a JsonNode instance and write a JsonNode out to JSON. To read JSON into a JsonNode with Jackson by creating ObjectMapper instance and call the readValue() method. We can access a field, array or nested object using the get() method of JsonNode class.

Try these

var res = [{"getCname('mail.fred.com.au')":[{"cname":"www.fred.com.au"}]}];

res[0] ;// returns Object  {"getCname('mail.fred.com.au')":[{"cname":"www.fred.com.au"}]};

res[0]["getCname('mail.fred.com.au')"] ;//returns Array [{"cname":"www.fred.com.au"}];

res[0]["getCname('mail.fred.com.au')"][0].cname ;//returns "www.fred.com.au"

Access and print a specific JSON value, JSON objects are very much like javascript objects. JSON JSON objects are surrounded by curly braces { } . You can access object values in two ways :  You can use the syntax jsonObject.key to access the the value. And if you want access a value from an array, then you can use the syntax jsonObjectArray[index].key. Here are the code examples to access various values to give you the idea.

JSON Objects – REST API Tutorial, If, instead, you have a JSON object in a .js or .html file, you'll likely see it In order to access any of the values, we'll be using dot notation that  JSON wouldn’t be very useful if you always had to print out the entire response. Instead, you select the exact property you want and pull that out through dot notation. The dot (.) after response (the name of the JSON payload, as defined arbitrarily in the jQuery AJAX function) is how you access the values you want from the JSON object.

How To Work with JSON in JavaScript, In brief, a JSON object is a series of key/value pairs, where keys are the names If you want to access a value in an object that's already within  JSON Values. In JSON, values must be one of the following data types: a string; a number; an object (JSON object) an array; a boolean; null; In JavaScript values can be all of the above, plus any other valid JavaScript expression, including: a function; a date; undefined; In JSON, string values must be written with double quotes:

Reshaping JSON with jq, In JSON, property names or keys are always strings, while the value can be a to convert this JSON string into a JavaScript object and access individual values​  Here, we’ve successfully called the value associated with the first_name key from the sammy JSON object. We can also use square bracket syntax to access data from JSON. To do that, we would keep the key in double quotes within square brackets.