Pattern: Use of var self = this
Issue: -
Deprecated - This rule can be replaced with TSLint's no-this-assignment.
Do not use var self = this; instead, manage scope with arrow
functions/lambdas. Self variables are a common practice in JavaScript
but can be avoided in TypeScript. By default the rule bans any
assignments of the this reference. If you want to enforce a naming
convention or allow some usages then configure the rule with a regex. By
default the rule is configured with (?!) which matches nothing. You
can pass ^self$ to allow variables named self or pass ^(?!self$) to
allow anything other than self, for example.