Is your aversion to an underscore more about a variable identified by that or its presence at all? For the latter Python encourages slug_case_naming_schemes an

Is your aversion to an underscore more about a variable identified by that or its presence at all? For the latter Python encourages slug_case_naming_schemes and _ is a valid identifier in Python too. So there's nothing going on here beyond normal Javascript syntax which can be closure heavy -- a main feature of Javascript.