suit usage of undescore object/namespace like it have to be
suit usage of undescore object/namespace like it have to be

> because the gold is to have `_[.function]` not `_[._function]`.
when once call `import * as _ from 'undescore/tools'`, this give a non common usage of underscore `(ex: _._union([], []))` without the chaining feature.
however call `import * as _ from 'undescore/index'` is a good way to have common underscore's object usage `(ex: _.union([], [])) ` with the chainning ability.

tnga/underscore-es,tnga/underscore-es