Question

The code looks like this

function Scripts() {this.FindById = function (id) {
    this.FindById.constructor.prototype.value = function () {
        return document.getElementById(id).value;

    }}}

var Control = new Scripts();

Now when i say Control.FindById(“T1”).value(). I am not able to get the textInput(“T1”)’s value.

Answer 1

It seems that your code is a bit more complicated then it should be 😉

Personally I would write it this way (not tested):

function Scripts() {
  this.findById = function(id) {
    var el = document.getElementById(id);

    return {
      value: function() { 
        return el.value;
      }
    }
  }
}

The findById() now closes over a node and returns an interface that can return its value.

Also, your idea sounds a lot like Singleton, so you wouldn’t even need the extra Scripts constructor:

var Control = {
    findById: function(id) {
        var el = document.getElementById(id);

        return {
            value: function() { 
                return el.value;
            }
        }
    }
}

---

Working example: http://jsfiddle.net/YYkD7/