How to get asp.net client id at external javascript file

Question

When I use embedded javascript functions I can get client id of elements with this code:

document.getElementById(\'<%=buttonXXX         


        

Answer 1

I know old question but with jquery u can use this approache:

Aspx file

external js file

$("[ClientID='btnCalculate']").

https://lanitdev.wordpress.com/2009/06/08/extending-jquery-to-select-asp-controls/