Functional If/Else

Functional if in Javascript

What about this functional if/else version for Javascript?

            function _if(boolean, trueBody) {
                if(boolean) {
                    trueBody();
                }

                function _else(falseBody) {
                    if(!boolean) {
                        falseBody();
                    }
                }

                return {
                    else: _else
                }
            }
        

It can now now be used like this:

            _if(booleanExpression, function() {
                // if body
            }).else(function() {
                // else body
            });
        

Now you have an if/else body with local scope.