json parsing using jquery

in my javascript I have this array

var versions = 
[{"id":"454","name":"jack"},
{"id":"4","name":"rose"}
{"id":"6","name":"ikma"}
{"id":"5","name":"naki"}
{"id":"667","name":"da开发者_如何学JAVAsi"}
]

I want to parse it for the name where id is 4. how would i do that.

---

How about:

$.each(versions, function(index, value) { 
   if (value['id'] === '4') {
        alert('got it!');
   }
});

---

This is untested, but should work.

for(var i in versions) {
   if(versions[i].id == 4) {
        alert(versions[i].name);
        break;
   }
}

Edit: Added short circuit.

---

You'll have to iterate through the array and pull out the names where the id equals "4"

var names = [];

for(var i=0; i<versions.length; i=i+1)
{
    var version = versions[i];
    if(version.id == "4")
    {
        names.push(version.name);
    }
}

---

var versions = {
  '454': {name: 'jack'},
  '4': {name: 'rose'},
  '6': {name: 'ikma'},
  '5': {name: 'naki'},
  '667': {name: 'dasi'}
};

alert(versions['4'].name);