Making Sense of 'No Shadowed Variable' tslint Warning

Question

I have a function that checks for the current stage in a sequential stream, based on a particular discipline that is passed in, and, according to that value, assigns the nex

Answer 1

In general this error occurs When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers

Refer to this article for code samples explaining this.