Question

I want to put data in javascript array like below.

"Carl", 56
"Mark", 7
"Bob", 45

How can I add item and removed from it when I pass any id to that array it should remove that item from array. and gives comma separated names and ids.
I am bit confused about it.

Answer 1

All objects in JavaScript can be used as associative arrays. You do not need a two-dimensional array for your example.

var data = {};
data["Carl"] = 56;
data["Mark"] = 7;
data["Bob"] = 45;

To remove an element, use the delete keyword:

delete data["Carl"];

You can iterate over the object using a for-in loop. To generate a list, you can do something like this:

var result = '';
for (var x in data) {
  if (data.hasOwnProperty(x)) {
    result += x + ',' + data[x] + '\n';
  }
}
alert(result);