Question

I have a series input tag like

<input id="t1" value="1">
<input id="t2" value="2">
<input id="t3" value="3">

then I want build a javascript object as id/value format,like :

input:
{
   ["t1",1]
   ["t2",2]
   ["t3",3]
}

how can I achieve that?with which function or method?with Array?

Answer 1

The object you describe is invalid. Assuming you mean:

{
   "t1":1,
   "t2":2,
   "t3":3
}

Just loop over the elements, and examine the id and value properties to get the data.

var inputs = document.getElementsByTagName('input');
var ob = {};
for (var i = 0; i < inputs.length; i++) {
  var input = inputs[i];
  ob[input.id] = input.value;
}