Appending to an object

Question

I have an object that holds alerts and some information about them:

var alerts = {      1: { app: 'helloworld', message: 'message' },     2: { app: 'helloagain', message: 'another message' } } 

In addition to this, I have a variable that says how many alerts there are, alertNo. My question is, when I go to add a new alert, is there a way to append the alert onto the alerts object?

Answer 1

How about storing the alerts as records in an array instead of properties of a single object ?

var alerts = [      {num : 1, app:'helloworld',message:'message'},     {num : 2, app:'helloagain',message:'another message'}  ] 

And then to add one, just use push:

alerts.push({num : 3, app:'helloagain_again',message:'yet another message'}); 

Answer 2

jQuery $.extend(obj1, obj2) would merge 2 objects for you, but you should really be using an array.

var alertsObj = {     1: {app:'helloworld','message'},     2: {app:'helloagain',message:'another message'} };  var alertArr = [     {app:'helloworld','message'},     {app:'helloagain',message:'another message'} ];  var newAlert = {app:'new',message:'message'};  $.extend(alertsObj, newAlert); alertArr.push(newAlert);