Question

In the example below is there a way to set one or more of the object keys for instance "value" to a variable? I would like to do this while keeping the JOSN object intact.

var ex = { 
  "value": 4,
  "amount": 1341,
  "data": "tree",
  "animal": "mouse"
}

I know that it is possible to do this.

var value = "value";
var ex = {};
ex[value] = 4;
ex.amount = 1341;
ex.data = "tree";
ex.animal = "mouse";

This is tearing the whole object into pieces and is much harder to manage.

Answer 1

Nope, that’s not possible. You need to do it the second way, or a mixture of the two:

var ex = {
  "amount": 1341,
  "data": "tree",
  "animal": "mouse"
};

ex[value] = 4;