How to access object

Question

I want alert object key name and its value. But it is not working.

$(function() {
    var james =  {first: '1,2,3', second: '4,5,6' } 
    $('a').click(function(){
        alert(james[first]) 
    })
})

VisioN · Answer 1 · 2012-11-14T12:20:00.777

5

You should correctly use either square bracket notation:

alert(james["first"])

or dot notation:

alert(james.first)

to access elements in objects.

Useful reference:

If you need to display all items in the object use for loop with in keyword:

for (var key in james) {
    // key          -- for key
    // james[key]   -- for value
}

edited Nov 14 '12 at 12:20

answered Nov 14 '12 at 12:14

VisioN

You already have the key - `first` – Rory McCrossan Nov 14 '12 at 12:17
ya but i want alert it, second in first's key value i have 3 value what to do if i only want to alert first one – Jitender Chand Nov 14 '12 at 12:18
Can we have choice to select from value – Jitender Chand Nov 14 '12 at 12:22
@JitenderChand I'm not sure that I understand what you are trying to ask. – VisioN Nov 14 '12 at 12:23
I have two keys "first" and 'second' I want to alert "1" from value – Jitender Chand Nov 14 '12 at 12:24
@JitenderChand Like that: `alert(james.first.split(",")[0]);`? – VisioN Nov 14 '12 at 12:25
Thanks that what i want want – Jitender Chand Nov 14 '12 at 12:27
@JitenderChand Hm... alright :) – VisioN Nov 14 '12 at 12:27
1

@Jitender: These are questions that would have helped you: http://stackoverflow.com/questions/13341016/get-first-and-rest-of-string-from-comma-separated-values-in-javascript, http://stackoverflow.com/questions/2858121/convert-javascript-comma-separated-string-into-an-array. It also helps to actually ask for what you want to know. – Felix Kling Nov 14 '12 at 12:28

score 0 · Answer 2 · answered Nov 14 '12 at 12:17

0

you can use foreach to read all property :

for (var key in james) {
  alert(key);
}

answered Nov 14 '12 at 12:17

Sirwan Afifi

2 Answers2