Tips for modifying the value of a JSON object using Javascript or Jquery

Question

Tips for modifying the value of a JSON object using Javascript or Jquery

I am looking to retrieve the value of a specific key, potentially accessing nested values as well. For example, changing the value of "key1" to "value100" or "key11" to "value111.

{
                "key1": "value1",
                "key2": "value2",
                "key3": "value3",
                "map1" : {"key4":"value4",
                "key5":"value5",
                "key6":"value6",
                "map2" : 
                {
                    "key7":"value7",
                    "key8":"value8",
                    "key9":"value9",
                    "map3" : 
                    {
                        "key10":"value10",
                        "key11":"value11",
                        "key12":"value12"
                    },
                    "map4" : 
                    {
                        "key13":"value13",
                        "key14":"value14",
                        "key15":"value15"
                    }
                }
                }
                }

I need assistance in achieving this using JavaScript or jQuery. Any guidance on how to tackle this issue would be greatly appreciated.

javascript jquery json jakarta-ee

Answer 1

Answer №1

Storing data in a variable is an efficient way to access it later on. For example, by using the following syntax:

var object = { *your JSON here*}

You can retrieve specific values by referencing the key within the object like this:

object.key1

To access values nested within another object (in this case map2), you would use:

object.map2.key7

For updating values, simply assign a new value to the desired key:

object.key = *value*;

Answer 2

Storing data in a variable is an efficient way to access it later on. For example, by using the following syntax:

var object = { *your JSON here*}

You can retrieve specific values by referencing the key within the object like this:

object.key1

To access values nested within another object (in this case map2), you would use:

object.map2.key7

For updating values, simply assign a new value to the desired key:

object.key = *value*;

Answer 3

Answer №2

To update your json data, simply store it in a JavaScript object and make the necessary modifications.

var _d ={
    "name": "John",
    "age": 30,
    "address": "123 Main St",
    "friends" : { 
        "friend1": "Jane",
        "friend2": "Mike",
        "friend3": "Sarah",
        "bestFriend" : {
            "name":"Peter",
            "age":25
        },
        "closeFriends" : {
            "friend4":"David",
            "friend5":"Emily"
        }
    }
};

_d.name = "New Name";
$('div').html(JSON.stringify(_d));

For a working example, check out this JS Fiddle link

Answer 4

To update your json data, simply store it in a JavaScript object and make the necessary modifications.

var _d ={
    "name": "John",
    "age": 30,
    "address": "123 Main St",
    "friends" : { 
        "friend1": "Jane",
        "friend2": "Mike",
        "friend3": "Sarah",
        "bestFriend" : {
            "name":"Peter",
            "age":25
        },
        "closeFriends" : {
            "friend4":"David",
            "friend5":"Emily"
        }
    }
};

_d.name = "New Name";
$('div').html(JSON.stringify(_d));

For a working example, check out this JS Fiddle link

Tips for modifying the value of a JSON object using Javascript or Jquery

Answer №1

Answer №2

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