JQuery in sap ui5

Hi,

I am trying to use JQuery in SAP UI5.

I created one Input field with Id in the View.

var ip = new sap.m.Input("ip");

In controller of the view for a Button action I am trying to access the value entered in the Input field as shown below.

var v1 = $("#ip").val();

But after execution of his statement there is no value in v1.

Can anyone please explain how to use JQuery in SAPUI5?