Add or change a value of JSON key with jquery or javascript

Question

I have a JSON string    that I have returned from   ajax   and named it data  Some of the values are empty and I need to add values to some of the keys and send it back to my PHP script   I access the existing values by data keyName  How do I add or change the values of certain keys in  data    This is what data looks like          ID   48        userID   0        address   750 North High Street        city   Columbus        state   OH        zip   43215        lat   39 977673        lng   -83 003357        busNumber   55        isClaimed   N        whereFound           busNum           email           fname           lname           comments

User · Answer

It seems if your key is saved in a variable. data.key = value won't work.

You should use data[key] = value

Example:

data = {key1:'v1', key2:'v2'};

var mykey = 'key1'; 
data.mykey = 'newv1';
data[mykey] = 'newV2';

console.log(data);

Result:

{
  "key1": "newV2",
  "key2": "v2",
  "mykey": "newv1"
}

User · Answer

var y axis name       for var point in jsonData 0  data                                   y axis name push point                      y axis name is having all the key name  try on jsfiddle

User · Answer

data userID    10

User · Answer

var temp   data oldKey     or data  oldKey   data newKey   temp  delete data oldKey

User · Answer

Just like you would for any other variable  you just set it  alert data ID   data ID    bar      dot notation  alert data ID       data userID   123456  data  address      123 some street     bracket notation

User · Answer

Once you have decoded the JSON  the result is a JavaScript object   Just manipulate it as you would any other object   For example   data busNum   12345

[javascript] Add or change a value of JSON key with jquery or javascript

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