annotate .jshintrc @ 45863:68aedad4c11c

pure: guard against empty blocks

If blocks is empty, we append `None` to the returned list, which is
incorrect.

This subtle issue was caught by pytype, which correctly identified
the return value as List[Optional[Tuple]] because of this possibility.

Differential Revision: https://phab.mercurial-scm.org/D9279

{
    // Enforcing
    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison
    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()
    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.
    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)

    // Environments
    "browser"       : true      // Web Browser (window, document, etc)
}