How Can I Iterate Through and Display JSON Data Using jQuery?

Parsing JSON Data with jQuery / JavaScript

When working with web services or APIs, it's common to receive JSON data. Parsing this data into a usable format is necessary for displaying and manipulating the data on your web page.

Problem Statement:
Consider the following AJAX call that returns JSON data:

$(document).ready(function () {
    $.ajax({
        type: 'GET',
        url: 'http://example/functions.php',
        data: { get_param: 'value' },
        success: function (data) {
            var names = data;
            $('#cand').html(data);
        }
    });
});

The JSON data retrieved in the #cand div looks like this:

[
    { "id": "1", "name": "test1" },
    { "id": "2", "name": "test2" },
    { "id": "3", "name": "test3" },
    { "id": "4", "name": "test4" },
    { "id": "5", "name": "test5" }
]

The question arises: how can we loop through this JSON data and display each name in a separate div?

Solution:
To parse JSON data correctly, we need to ensure that the server-side script sets the proper Content-Type: application/json response header. For jQuery to recognize the data as JSON, we need to specify dataType: 'json' in the AJAX call.

Once we have the correct data type, we can use the $.each() function to iterate through the data:

$.ajax({
    type: 'GET',
    url: 'http://example/functions.php',
    data: { get_param: 'value' },
    dataType: 'json',
    success: function (data) {
        $.each(data, function (index, element) {
            $('body').append($('<div>', {
                text: element.name
            }));
        });
    }
});

Alternatively, you can use the $.getJSON() method for a more concise approach:

$.getJSON('/functions.php', { get_param: 'value' }, function (data) {
    $.each(data, function (index, element) {
        $('body').append($('<div>', {
            text: element.name
        }));
    });
});

This will create a new div for each name in the JSON data and display it on the web page.

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