How to use JavaScript variable value as Object selector

Question

I have a JavaScript variable:

var field = "Name";

Now I have an Object:

var obj = {Name: Bhaskor,Surname: Sarmah};

Now I need to select the Name field of obj using my field variable value:

var name = obj.(field);

Is there any way to do this?

score 3 · Accepted Answer · answered Dec 03 '14 at 07:22

3

You need to use bracket notation as the member operator to get a property using a variable

var name = obj[field];

answered Dec 03 '14 at 07:22

Arun P Johny

Is there any way to use the field inside a variable name like var x+[field]+count = 0; – Bhaskor Jyoti Sarmah Dec 03 '14 at 07:32

score 1 · Answer 2 · answered Dec 03 '14 at 07:22

1

You simply need to replace your brackets:

var name = obj[field];

answered Dec 03 '14 at 07:22

baao

2 Answers2