push key value pair to last position of exiting object code example
Example: ad data to js object
//Consider the following example object literal:
var myObject = {
sProp: 'some string value',
numProp: 2,
bProp: false
};
//You can use dot syntax to add a new property to it as follows:
myObject.prop2 = 'data here';
//Modify a Property of an Object Literal
//The process for modifying a property is essentially the same.
//Here we will assign a new value to the sProp property shown in the
//original myObject definition above:
myObject.sProp = 'A new string value for our original string property';
//Read Current Value of Object Property
//The following demonstrates how to access a property of an object literal:
alert(myObject.sProp) // display myObject.sProp value in alert
var val = myObject.sProp; // assign myObject.sProp to variable