What is the process for changing a JSON string into a JavaScript array?

Question

What is the process for changing a JSON string into a JavaScript array?

I've searched extensively but still haven't found a suitable solution.

Currently, I have a JSON string that is being retrieved from the server. My goal is to convert this string into a JavaScript array in order to organize the data by "hotel_name," 'minPrice,' and 'hotel_star.'

Below is the JSON string:

   {
   "00001065": {
      "hotel_id": "00001065",
      "hotel_name": "The Infantry Hotel",
      "hotel_star": "3",
      "image": "",
      "location": "Infantry Road",
      "minPrice": "2,497",
      "RoomTypes": [
         {
            "RoomTypeName": "Deluxe King / Twin Double",
            "AvailableQuantity": "4",
            "RatePlanInclusions": "Complimentary Wi-Fi Internet",
            "price": "2,497"
         },
         {
            "RoomTypeName": "Superior Double",
            "AvailableQuantity": "2",
            "RatePlanInclusions": "Breakfast",
            "price": "3,496"
         }
      ]
   },
   "00001080": {
      "hotel_id": "00001080",
      "hotel_name": "Hotel Ramanashree",
      "hotel_star": "3",
      "image": "",
      "location": "Richmond Road",
      "minPrice": "3,879",
      "RoomTypes": [
         {
            "RoomTypeName": "Executive Room",
            "AvailableQuantity": "25",
            "RatePlanInclusions": "Breakfast",
            "price": "3,879"
         },
         {
            "RoomTypeName": "Club Room",
            "AvailableQuantity": "25",
            "RatePlanInclusions": "Breakfast",
            "price": "4,604"
         }
      ]
   },
   "00003757": {
      "hotel_id": "00003757",
      "hotel_name": "The Paul ",
      "hotel_star": "5",
      "image": "",
      "location": "Domlur Layout",
      "minPrice": "6,216",
      "RoomTypes": [
         {
            "RoomTypeName": "Executive Suite - Two  Bedrooms Suite",
            "AvailableQuantity": "4",
            "RatePlanInclusions": "Complimentary Wi-Fi Internet, Breakfast",
            "price": "8,942"
         },
         {
            "RoomTypeName": "Premier Suite - Two  Bedrooms Suite",
            "AvailableQuantity": "2",
            "RatePlanInclusions": "Complimentary Wi-Fi Internet, Breakfast",
            "price": "10,718"
         },
         {
            "RoomTypeName": "Studio Suite - One  Bedroom Suite",
            "AvailableQuantity": "4",
            "RatePlanInclusions": "Complimentary Wi-Fi Internet, Breakfast",
            "price": "6,216"
         }
      ]
   }
}

javascript arrays json

Answer 1

Answer №1

If you're new to JavaScript, starting with a JSON tutorial might be beneficial before diving into more complex tasks. An excellent resource to begin with is MDN.

One handy function in JavaScript is the ability to parse JSON data and convert it into an array.

// Function to convert an object into an array
function objectToArray(obj) {
    var array = [];
    for (prop in obj) {
        if (obj.hasOwnProperty(prop)) {
            array.push(obj[prop]);
        }
    }
    return array;
}

var obj = JSON.parse(json_string);
var arr = objectToArray(obj);

To manipulate the array further, you can explore sorting it using the sort() method and create your own compareFunction.

Answer 2

If you're new to JavaScript, starting with a JSON tutorial might be beneficial before diving into more complex tasks. An excellent resource to begin with is MDN.

One handy function in JavaScript is the ability to parse JSON data and convert it into an array.

// Function to convert an object into an array
function objectToArray(obj) {
    var array = [];
    for (prop in obj) {
        if (obj.hasOwnProperty(prop)) {
            array.push(obj[prop]);
        }
    }
    return array;
}

var obj = JSON.parse(json_string);
var arr = objectToArray(obj);

To manipulate the array further, you can explore sorting it using the sort() method and create your own compareFunction.

Answer 3

Answer №2

Sorting a JSON object does not require converting it into an array first. You can simply sort the JSON object itself.

function sortResults(prop, asc) {
    arr = arr.sort(function(a, b) {
        if (asc) return (a[prop] > b[prop]);
        else return (b[prop] > a[prop]);
    });
}

I have implemented a demonstration with your JSON data where you can click on the headers to see the sorting in action: http://jsfiddle.net/VAKrE/922/

Answer 4

Sorting a JSON object does not require converting it into an array first. You can simply sort the JSON object itself.

function sortResults(prop, asc) {
    arr = arr.sort(function(a, b) {
        if (asc) return (a[prop] > b[prop]);
        else return (b[prop] > a[prop]);
    });
}

I have implemented a demonstration with your JSON data where you can click on the headers to see the sorting in action: http://jsfiddle.net/VAKrE/922/

Answer 5

Answer №3

This is a possible way to achieve the desired result:

let data = JSON.parse("...");

let asArray = Object.keys(data).map(function(key) { return data[key] });

asArray.sort(function(x, y) {
    if(x.hotel_name > y.hotel_name) return 1;
    if(x.hotel_name < y.hotel_name) return -1;
    return 0;
});

Answer 6

This is a possible way to achieve the desired result:

let data = JSON.parse("...");

let asArray = Object.keys(data).map(function(key) { return data[key] });

asArray.sort(function(x, y) {
    if(x.hotel_name > y.hotel_name) return 1;
    if(x.hotel_name < y.hotel_name) return -1;
    return 0;
});

Answer 7

Answer №4

let obj = JSON.parse(dataFromServer);

Answer 8

let obj = JSON.parse(dataFromServer);

What is the process for changing a JSON string into a JavaScript array?

Answer №1

Answer №2

Answer №3

Answer №4

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