Why does `binary operation argument type newval is not compatible with type string` appear

Question

I have the following code and inside of it the WebStorm inspection Binary operation argument type newVal is not compatible with type string appears:

Answer 1

AngularJS's JSDoc definition makes WebStorm think the path argument is a boolean.

You can make WebStorm stop complaining by adding your own JSDoc:

if (path !== /** @type {boolean} */"") {