How to update and delete object Value in javascript

Question

var key = {"kay_1":{
"sample_1":"spmedata", "sample_2":"spmedata", }, "kay_2":{
"sample_1":"spmedata", "sample_2":"spmedata", } }

Now My Question is that how to update and delete "kay_2"->"sample_1" key?

Use the dot or bracket notation to update value: `key['kay_2']['sample_1'] = 'new value'`. To delete use `delete key['kay_2']['sample_1']`. — Terry, Dec 01 '15 at 08:38
Please have a look at: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects — Cerbrus, Dec 01 '15 at 08:41
Need a complete tutorial to manipulate JSON data by Native Javascript. — Kaushik Das, Dec 01 '15 at 09:11

score 1 · Answer 1 · answered Dec 01 '15 at 08:39

1

var key={"kay_1":{        
             "sample_1":"spmedata",
             "sample_2":"spmedata",
    },
"kay_2":{        
             "sample_1":"spmedata",
             "sample_2":"spmedata",
    }
}

// To update the value
key['kay_2']['sample_1'] = 'new value';

// To delete the key
delete key['kay_2']['sample_1']

answered Dec 01 '15 at 08:39

void

36,090
8
62
107

1: Object latlng: Object lat: 37.579412513438385 lng: -99.4976806640625 __proto__: Object __proto__: Object 2: Object latlng: Object lat: 37.996162679728116 lng: -90.7745361328125 __proto__: Object __proto__: Object __proto__: Object How to update Object '2' latlng Dynamically? Code will check whether it is object 1 or 2? I have integer value, I have checked it but it becomes object to integer checking? – Kaushik Das Dec 01 '15 at 11:36

score 1 · Answer 2 · edited Jan 24 '20 at 06:17

1

to update both ways could be used

key.kay_2.sample_1 = "changed value";
key['kay_2']['sample_1'] = "changed value";

for delete is the same

delete key.kay_2.sample_1;
delete key['kay_2']['sample_1'];

edited Jan 24 '20 at 06:17

Praveen Patel

349
7
24

answered Jan 24 '20 at 05:32

cbeltrangomez

412
2
9

score 0 · Answer 3 · answered Dec 01 '15 at 08:43

0

To modify the value try,

key.kay_2.sample_1 = "changed value";

To delete,

delete key.kay_2.sample_1

answered Dec 01 '15 at 08:43

TK8

125
6

How to update and delete object Value in javascript

3 Answers3