A doubt related to JSON arrays

**codeexploiter** · 05-07-2007, 04:48 AM

Hi,

Please have a look at the following code

Code:

function show() {
		var columnHeaders = [
		         	{key:"id_no"},
			    ];
		var keyValue = columnHeaders[0].key;
		
                var JSONArray2 = [{keyvalue:"testing"}];
}

In the above function what I am trying to achieve is to create a JSON array that will be like the following

Code:

JSONArray2 = [{"id_no":"testing"}]

The question is how I can specify a key value using a variable name in which the original key value I want to use?

Now below code

Code:

var keyValue = columnHeaders[0].key;
		
var JSONArray2 = [{keyvalue:"testing"}];

gives the following

Code:

JSONArray2 = [{keyvalue:"testing"}]

Please help me to understand this problem

Regards

CodeExploiter

**mwinter** · 05-07-2007, 10:58 AM

Originally Posted by codeexploiter

The question is how I can specify a key value using a variable name in which the original key value I want to use?

Bracket notation:

Code:

object[variable] = value;

For instance,

Code:

var keyValue = columnHeaders[0].key,
    jsonArray = [{}];

jsonArray[0][keyValue] = 'testing';

The property names in an object literals are themselves literals: either expressed as strings, numbers, or identifiers. However, the identifiers are not references to variables. Think instead of the identifier in variable declarations.

Mike