_.pushIfNotExist

Function Description
Pushes given item if array does not have a copy of the item.
Function prototype
_.pushIfNotExist(arr,item). Pushes @item into @arr by cheking uniqueness
Function parameters
@arr - JavaScript Array
itemJavaScript Array Item
Sample HTML DIV element is given to try UPJS function.
not applicable
Code area to try out _.pushIfNotExist function.