ReportComplaints.js:Uncaught Typeerror:cannot Read Property ' message ' of undefined

Vonic encountered such a problem, always prompted me undefined, but clearly there is a definition

var tab={    message:{number        :',        title:'    }}

 var  id= {Template:  ' #id ' 

It was later found that var self = this; Problem, the result is removed and normal, or the tab is removed can be returned to normal, the feeling is that self gets the This is not the same, some self contains tab, some contain tab properties,

Here's a quick look at the opportunity to get an insight into

ReportComplaints.js:Uncaught Typeerror:cannot Read Property ' message ' of undefined