I have two pages one contacts and another one contacts history.
To avoid the reputation of code, i am calling contact method in contacts history page.
using declare var window and window.contacts=this; in contacts page.
and contact history page again declare var window. and calling the method
window.contacts.gethistory(id) when i first render in contacts page and go to contacts history page click the button that time contact method calling successfully. if i render the contacts history directly and click the button means the below error is coming
ERROR TypeError: Cannot read property ‘gethistory’ of undefined. How to solve this.
Thanks in Advance