What is the method for navigating a nested dictionary?

Question

What is the method for navigating a nested dictionary?

Trying to access data from two dictionaries using JavaScript and having some trouble.

The JSON output received from the server is as follows:

{"meta":{},"linked":{"custom_fields":[{"id":"4","name":"Department"}],"custom_field_values":[{"id":"0001","value":"Marketing","links":{"custom_field":{"id":"4","type":"custom_fields"}}}]}

My goal is to display "Marketing" as the department, but I'm struggling to access the "links" property in order to retrieve the id.

When I create

var linked = linked.custom_field_values;

, I get a response that looks like this:

{"id":"0001","value":"Marketing","links":{"custom_field":{"id":"4","type":"custom_fields"}}}

However, when I attempt

var cfl = linked.links.custom_field.id

, it gives an error saying that "links" is not defined. It seems like there may be an issue with how I'm defining my variables?

The "links" property contains a dictionary with "Custom_field" nested underneath, which is where the necessary values are located.

If everything works correctly, shouldn't this code snippet print out the department accurately?

if(cfl.id == 4){
console.log('Department is ' + linked.value);
}

javascript json

Answer 1

Answer №1

From the appearance of it, custom_field_values seems to be an array. To access the first item in the array, you need to use this code:

var linked = linked.custom_field_values[0];

Answer 2

From the appearance of it, custom_field_values seems to be an array. To access the first item in the array, you need to use this code:

var linked = linked.custom_field_values[0];

Answer 3

Answer №2

When working with a properly formatted object, you will notice that there is an array inside of it. In order to access the elements within this array, you need to specify an index value.

var object = {
    meta: {},
    linked: {
        custom_fields: [
            {
                id: "4",
                name: "Department"
            }
        ],
        custom_field_values: [
            {
                id: "0001",
                value: "Marketing",
                links: {
                    custom_field: {
                        id: "4",
                        type: "custom_fields"
                    }
                }
            }
        ]
    };

console.log(object.linked.custom_fields[0].id);
console.log(object.linked.custom_field_values[0].id);

Answer 4

When working with a properly formatted object, you will notice that there is an array inside of it. In order to access the elements within this array, you need to specify an index value.

var object = {
    meta: {},
    linked: {
        custom_fields: [
            {
                id: "4",
                name: "Department"
            }
        ],
        custom_field_values: [
            {
                id: "0001",
                value: "Marketing",
                links: {
                    custom_field: {
                        id: "4",
                        type: "custom_fields"
                    }
                }
            }
        ]
    };

console.log(object.linked.custom_fields[0].id);
console.log(object.linked.custom_field_values[0].id);

What is the method for navigating a nested dictionary?

Answer №1

Answer №2

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